Disciplines / Research questions

数学

247 个研究主题 · 1651 个问题

黎曼(Riemann)ζ\zeta函数在奇正整数点处值的超越性10 个问题
  1. Determining the Q\mathbb{Q}-dimension of the span of 1,ζ(3),ζ(5),…,ζ(s)1,\zeta(3),\zeta(5),\ldots,\zeta(s): linear independence of odd zeta values

    未解决约 48 年
  2. Is Apéry's constant ζ(3)\zeta(3) transcendental, and are ζ(3)\zeta(3) and π\pi algebraically independent?

    未解决约 47 年
  3. Irrationality of odd zeta values: is ζ(5) irrational, and how many of ζ(3), ζ(5), …, ζ(s) are irrational?

    未解决约 47 年
  4. The Sondow–Zlobin conjecture on triangle integrals: prove that InI_n is never a rational multiple of ζ(n+2)\zeta(n+2) for any integer n>2n>2

    未解决约 19 年
  5. Irrationality of ζ(5)\zeta(5)

    未解决约 47 年
  6. Irrationality of the Riemann zeta values at odd integers: is ζ(s) irrational for any fixed odd s ≥ 5?

    未解决约 48 年
  7. Arithmetic nature of the odd Riemann zeta values: irrationality of ζ(2m+1)\zeta(2m+1) for m≥2m\geq 2

    未解决约 47 年
  8. Closed forms for odd zeta values: whether ζ(2n+1)\zeta(2n+1) is a rational multiple of π2n+1\pi^{2n+1}

    未解决约 47 年
  9. Improving the lower bound for the number of irrational odd zeta values

    未解决约 24 年
  10. Irrationality of individual odd zeta values: is ζ(5) irrational?

    未解决约 48 年
黎曼(Riemann)猜想6 个问题
  1. Open analytical questions for Voros's discretized Keiper–Li sequence: transseries asymptotics, all-nn positivity, and remainder bounds

    未解决约 9 年
  2. The zeta spiral on the critical line: denseness of the values of ζ(1/2+it)\zeta(1/2+it) in C\mathbb{C} and the unconditional curvature sign

    未解决约 16 年
  3. The Alternative Hypothesis for zeta-zero pairs: determinacy of the limiting densities p_{k/2} under AH-Pairs alone

    未解决约 30 年
  4. The missing direction of the Soundararajan and Radziwiłł equivalence between small gaps of zeros of the Riemann zeta-function and the horizontal distribution of zeros of ζ′(s), and the conjectured small-v asymptotics of m(v) and m′(v)

    未解决约 28 年
  5. Denseness of the values of log⁡ζ(1/2+it)\log\zeta(1/2+it) on the critical line: the remaining case of the Bohr–Courant value-distribution problem

    未解决约 112 年
  6. Unconditional discrete second moments of the Riemann zeta-function along polynomial shifts: closing the abscissa gap to the line σ=1/2\sigma=1/2

    未解决约 6 年
李代数及其对偶空间的幂零元的分类7 个问题
  1. The normal-form map f↦wff\mapsto w_f versus the Kazhdan–Lusztig map, and the even-depth analogue of the minimal reducing subalgebra theorem for nilpotent elements

    未解决约 5 年
  2. Canonical forms for coadjoint orbits of maximal unipotent subgroups: Surkov's Conjecture 3.8 for root systems beyond G_2 and F_4

    未解决约 1 年
  3. General classification of nilpotent orbits in real graded semisimple Lie algebras: completing the real carrier-algebra programme

    未解决约 12 年
  4. Classification of coadjoint orbits of maximal dimension for Borel nilradicals in types BnB_n, DnD_n and E8E_8

    未解决约 64 年
  5. Nilpotent orbit finiteness, separability, and Howe's conjecture for non-split reductive groups over local fields of positive characteristic

    未解决约 10 年
  6. Spaltenstein's conjecture: every stabiliser sheet of a reductive Lie algebra contains a unique nilpotent orbit, in arbitrary characteristic

    未解决约 44 年
  7. Coincidence of the two Springer correspondences for the dual of a classical Lie algebra in characteristic 2 (Xue's Remark 5.19 expectation)

    未解决约 16 年
李群表示的分歧律5 个问题
  1. Packet-level multiplicity-one for the branching of O(p,q)O(p,q) to O(p−1,q)O(p-1,q) beyond regular parameters, small-rank signatures, and a Gross–Prasad-type law for non-tempered packets

    未解决约 7 年
  2. Classification of the triples (G,πλG,ϕ)(G,\pi_\lambda^G,\phi) with admissible restriction of a discrete series representation to an embedded SU(2,1)SU(2,1)

    未解决约 8 年
  3. Finite multiplicity of the continuous spectrum in discrete series branching laws: a per-representation criterion and the finite-infinite boundary for symmetric pairs beyond the real-spherical class

    未解决约 13 年
  4. Kobayashi's conjecture on admissible restrictions: does G′G'-admissibility imply K′K'-admissibility?

    未解决约 26 年
  5. Blattner-type multiplicity formula for discretely decomposable restrictions of Zuckerman modules Aq(λ)A_{\mathfrak q}(\lambda) to symmetric subgroups (Ørsted–Speh conjecture)

    未解决约 18 年
李群酉表示的分类8 个问题
  1. Positive energy versus semiboundedness for irreducible unitary representations of full hermitian Lie groups

    未解决约 15 年
  2. The unitary duals of the complex exceptional simple Lie groups F4F_4, E6E_6, E7E_7, and E8E_8

    未解决约 37 年
  3. General super imprimitivity theorem: Mackey induction and systems of imprimitivity for super homogeneous spaces with odd directions

    未解决约 21 年
  4. Unitary dual of Drinfeld doubles of q-deformations of compact semisimple Lie groups beyond the almost-real regime

    未解决约 10 年
  5. The Salamanca-Riba–Vogan unitarily-small infinitesimal-character conjecture for real reductive groups beyond U(p,q)U(p,q)

    未解决约 27 年
  6. Structural theory of the FS-scattered part of the Dirac series for real exceptional Lie groups: u-small K-types, unipotent representations, and cancellation in the Dirac index

    未解决约 6 年
  7. Making the FPP description of the unitary dual of real reductive groups algorithmically effective

    未解决约 3 年
  8. Algebraic constructions of first-reduction-point and exceptional unitary highest weight modules

    未解决约 3 年
里德-所罗门(Reed-Solomon)码的译码问题7 个问题
  1. Hardware realization of quasi-linear FFT-based Reed–Solomon decoders (the modular-approach MA/FDMA/FMA family)

    未解决约 4 年
  2. Low-complexity algebraic soft-decision decoding of Reed–Solomon codes: closing the performance–complexity gap of Koetter–Vardy decoding

    未解决约 22 年
  3. Combinatorial List-Size Classification of Linearized Reed–Solomon Codes Across All Sum-Rank Parameter Regimes

    未解决约 5 年
  4. Efficient decoding, list-decodability, and dual insdel distance of Reed–Solomon codes under insertion–deletion errors

    未解决约 6 年
  5. Efficient list-decoding of Reed-Solomon codes at the generalized Singleton radius, and efficient certification of optimal list-decodability

    未解决约 6 年
  6. Explicit Reed–Solomon codes achieving capacity-level list-decodability over small fields

    未解决约 5 年
  7. Proximity gaps for Reed–Solomon codes above the Johnson radius: list- and line-decodability over prime fields up to the Elias radius

    未解决约 6 年
连续统势确定问题5 个问题
  1. Consistency strength of the higher Solovay configuration at singular cardinals of countable cofinality: measurability of κ+\kappa^+ in L(P(κ))L(\mathcal{P}(\kappa)) and the ℵω\aleph_\omega-perfect set property

  2. Woodin's Ω Conjecture: completeness of Ω-logic under a proper class of Woodin cardinals

  3. Optimal large-cardinal strength for blowing up the power of a singular cardinal of uncountable cofinality that is singular in the core model

  4. Optimal hypotheses for Easton's theorem at measurable and strong cardinals

  5. The Revision Hypothesis: must every limit cardinal be a revision cardinal?

量子层猜想7 个问题
  1. Bound states of the Dirichlet Laplacian in the Fichera layer and generalized Fichera layers: exact counts

    未解决约 8 年
  2. Geometric characterization of the discrete spectrum of quantum layers and their nonsmooth analogues: bound states, thickness uniformity, and the converse problem

    未解决约 25 年
  3. Discrete spectrum of curved quantum layers: the Lu–Rowlett open problems on uniform thin-layer existence, the positive-total-Gauss-curvature domination inequality, and the thick-layer dichotomy

    未解决约 14 年
  4. Empty discrete spectrum of generalized quantum tubes: the converse problem beyond thin layers and surfaces

    未解决约 20 年
  5. Width-uniform existence of bound states in hard-wall quantum layers over finite-total-curvature surfaces

    未解决约 19 年
  6. Curvature-induced bound states in quantum layers over non-parabolic hypersurfaces in dimensions four and higher

    未解决约 14 年
  7. The quantum layer conjecture: bound states in hard-wall layers over nonplanar asymptotically flat surfaces with finite total curvature

    未解决约 25 年
量子极小模型猜测7 个问题
  1. Invariance and decomposition of quantum cohomology under flips and birational maps between minimal models

    未解决约 27 年
  2. Reduction conjecture for arbitrary smooth GIT quotients and quantum D-module decomposition for arbitrary standard flips

    未解决约 3 年
  3. Effective computation of quantum cohomology across conifold transitions: a blow-up formula along Weil divisors

    未解决约 11 年
  4. Does blowing up a Fano manifold along a smooth Fano center strictly increase the spectral radius of quantum multiplication by the first Chern class (Conjecture 1.1 of Hu–Ke–Li–Song)?

    未解决约 2 年
  5. Globalizing the quantum-flips F-embedding: big quantum cohomology under general global simple (r,r′) flips

    未解决约 6 年
  6. Establish the GG-equivariant noncommutative minimal model program: quasi-convergent paths of equivariant stability conditions from the equivariant quantum differential equation

    未解决约 3 年
  7. Blow-up compatibility of reflection vectors in quantum cohomology: convergence of the quantum cohomology of Bl(X) and the reflection-vector property for pullbacks of exceptional objects

    未解决约 3 年
量子杨-米尔斯(Yang-Mills)千禧问题4 个问题
  1. Extending the provable area-law regime for lattice Yang-Mills: the linear-in-N ('t Hooft) regime with uniform string tension, and fixed small N at large coupling

    未解决约 52 年
  2. Deconfinement for trivial-center lattice Yang–Mills in the strong-coupling regime and mass-gap criteria beyond the Bakry–Émery approach

    未解决约 47 年
  3. Deconfinement of trivial-center lattice Yang-Mills theories: uniform perimeter law for all strong-coupling beta, extensions to SO(2N+1) and general representations, the weak-coupling regime, and the large-N reconciliation

    未解决约 47 年
  4. Yang–Mills existence and mass gap: a fully quantized, background-independent four-dimensional theory with a gauge-invariant positive mass gap

    未解决约 26 年
列表染色猜想9 个问题
  1. The List Equitable Total Coloring Conjecture

    未解决约 8 年
  2. Enumerative chromatic-choosability of joins with complete graphs (the enumerative Ohba conjecture of Allred and Mudrock)

    未解决约 1 年
  3. The Proportional Choice Number of Complete Bipartite and Complete Multipartite Graphs: Exact Value, Classification, and Asymptotics

    未解决约 6 年
  4. Is every line graph {1⋆(χ′(G)−3), 3}\{1\star(\chi'(G)-3),\,3\}-choosable?

    未解决约 50 年
  5. Generalized Ohba conjecture for r-uniform hypergraphs: chromatic-choosability at high chromatic number

    未解决约 8 年
  6. The List Coloring Conjecture: is the list chromatic index of every multigraph equal to its chromatic index?

    未解决约 51 年
  7. List and correspondence colouring reconfiguration conjectures: optimal diameters n(G)+μ(G)n(G)+\mu(G) and n(G)+τ(G)n(G)+\tau(G)

    未解决约 4 年
  8. Paintability of balanced complete multipartite graphs with parts of size three: is χP(K3⋆n)=⌈(4n−1)/3⌉\chi_P(K_{3\star n})=\lceil(4n-1)/3\rceil for every nn, and what is χP(K3⋆7)\chi_P(K_{3\star 7})?

    未解决约 14 年
  9. Open problems on the λ-choosability of planar graph families from Zhu's refinement of choosability

    未解决约 7 年
六维球面上复结构的存在性问题6 个问题
  1. Integrability of the Clifford-induced almost complex structure on level hypersurfaces of OT-FKM isoparametric families

    未解决约 4 年
  2. The Hopf problem in generalized geometry: existence of an integrable generalized complex structure on the six-sphere S6\mathbb{S}^6

    未解决约 2 年
  3. Hopf's problem: does the six-sphere admit a complex structure?

    未解决约 79 年
  4. Vanishing and Chern-class constraints for compact complex threefolds with b2=0b_2=0 and holomorphic algebraic reduction in full generality

    未解决约 28 年
  5. Complex-structure rigidity without the Kähler hypothesis for the two exceptional G2G_2 flag manifolds QQ and ZZ

    未解决约 6 年
  6. A necessary-and-sufficient curvature characterization of integrability of almost complex structures

    未解决约 11 年
旅行商问题是否存在性能比小于 1.5 的近似算法7 个问题
  1. Is the integrality gap of the subtour-elimination LP for the metric s-t path TSP exactly 3/2?

    未解决约 10 年
  2. A 3/2-Approximation for Prize-Collecting TSP and a Black-Box Reduction from TSP to PCTSP

    未解决约 3 年
  3. The exact integrality ratio of the Held-Karp relaxation for the metric s-t path TSP

    未解决约 14 年
  4. The 4/3 conjecture for the integrality gap of the subtour elimination relaxation of the metric traveling salesman problem

    未解决约 46 年
  5. The 4/3-Conjecture for the Integrality Gap of the Subtour (Held–Karp) Relaxation of the Metric Traveling Salesman Problem

    未解决约 36 年
  6. Schalekamp–Williamson–van Zuylen conjecture: is the integrality gap of the subtour LP attained on half-integral vertices?

  7. The integrality ratio of the standard LP relaxation for the metric s-t-path TSP

    未解决约 14 年
旅行售货员问题7 个问题
  1. The exact integrality ratio of the Held-Karp (subtour) LP relaxation for the metric s-t path TSP

    未解决约 35 年
  2. Computational Complexity of the Symmetric Circulant Traveling Salesman Problem

    未解决约 41 年
  3. The four-thirds conjecture for the subtour elimination relaxation of the metric traveling salesman problem and the existence of a 4/3-approximation algorithm

    未解决约 36 年
  4. Determining the Beardwood–Halton–Hammersley constant for the random Euclidean traveling salesman problem: improving the rigorous lower bound 0.6277 and closing the gap to the upper bound 0.90367

    未解决约 66 年
  5. Is the integrality gap of the subtour LP for metric TSP attained on half-integral vertices? (Schalekamp–Williamson–van Zuylen conjecture)

    未解决约 13 年
  6. Constant-Factor Approximability of the Traveling Salesman Problem with Line Neighborhoods in R3\mathbb{R}^3

    未解决约 13 年
  7. Complexity of the Euclidean TSP with neighborhoods: optimal tours for rays in the plane and approximation for lines in 3-dimensional space

    未解决约 14 年
罗林(Rohlin)问题8 个问题
  1. Rokhlin's multiple mixing problem: does mixing imply mixing of all orders for measure-preserving automorphisms?

    未解决约 77 年
  2. Does exponential mixing imply multiple exponential mixing for smooth measure-preserving systems? (Problem 5.2 of Dolgopyat–Dong–Kanigowski–Nándori)

    未解决约 6 年
  3. Rohlin's multiple mixing problem for Z\mathbb{Z}-actions: does mixing imply mixing of all orders?

    未解决约 77 年
  4. Is the weak Ratner property an isomorphism invariant for measure-preserving flows?

    未解决约 16 年
  5. Open problems in the rigidity theory of actions with extreme deviation from multiple mixing

    未解决约 8 年
  6. The Rohlin problem: does mixing imply mixing of all orders for measure-preserving Z\mathbb{Z}-actions?

    未解决约 77 年
  7. Non-trivial pairwise-independent 3-fold self-joinings of zero-entropy mixing stationary processes

    未解决约 39 年
  8. Rohlin's problem: does strong mixing imply mixing of all orders for measure-preserving Z\mathbb{Z}-actions?

    未解决约 77 年
罗塔-巴克斯特(Rota-Baxter)代数中的几个问题5 个问题
  1. Realizing subgroups as images of Rota–Baxter operators on groups: the free-group instance (Kourovka Notebook Problem 20.124) and Rota–Baxter operators on free non-abelian groups

    未解决约 5 年
  2. A polarized classical Yang–Baxter equation for matching Rota–Baxter Lie algebras of weight zero

    未解决约 6 年
  3. Extended double shuffle completeness and Zagier's dimension conjecture for multiple zeta values

    未解决约 32 年
  4. Rota-Baxter indices of upper-triangular and semisimple matrix algebras and the derived-algebra nilpotency bound for Mn(F)M_n(F)

    未解决约 8 年
  5. Restricted post-Lie structures induced by tridendriform algebras in prime characteristic

    未解决不足 1 年
满足正规子群极小条件的可解群的Fitting子群是否是幂零的?3 个问题
  1. Minimal condition on normal subgroups of infinite rank for locally soluble groups

    未解决约 12 年
  2. Nilpotence of the Fitting subgroup of a soluble group with the minimal condition on normal subgroups

    未解决约 7 年
  3. Minimal condition on normal subgroups of infinite rank for locally soluble groups

没有对称性的非线性椭圆型方程无穷多个解的存在性7 个问题
  1. Geometric uniformity of minimizing tiled deformations for non-symmetric elliptic equations: extending the Bahri–Lions multiplicity theorem to arbitrary bounded smooth domains

    未解决约 37 年
  2. Infinitely many solutions of the Dirichlet pp-Laplacian with nonzero boundary data throughout the subcritical range

    未解决约 28 年
  3. Persistence of infinitely many solutions for the perturbed elliptic system −Δu=vp−1-\Delta u=v^{p-1}, −Δv=f(u)+h-\Delta v=f(u)+h in the full subcritical range (Salvatore's open problems)

    未解决约 16 年
  4. Broken-symmetry multiplicity for superlinear elliptic Dirichlet problems: the Bahri–Lions conjecture on general domains

    未解决约 37 年
  5. Sharp thresholds for infinitely many solutions of quasilinear equations perturbed from symmetry

    未解决约 12 年
  6. Extending the network-gluing construction of finite-energy solutions with trivial symmetry group to non-even nonlinearities and higher dimensions

    未解决约 12 年
  7. Infinitely many solutions for the superlinear Dirichlet problem with fixed inhomogeneous data in G-invariant domains: the full subcritical range

    未解决约 37 年
模代数smash积的半素性10 个问题
  1. Semiprimeness transfer to smash products of weak Hopf algebra actions: beyond the involutive, PI, finite-action case

    未解决约 40 年
  2. Does H-semiprimeness imply semiprimeness for PI-algebras acted on by finite-dimensional semisimple Hopf algebras in positive characteristic?

    未解决约 19 年
  3. The Cohen–Fishman question: is the smash product of a semisimple Hopf algebra with a semiprime module algebra always semiprime?

    未解决约 40 年
  4. Prime and semiprime smash products for finite-dimensional pointed Hopf algebras beyond quantum linear spaces

    未解决约 6 年
  5. Semiprimitivity and semiprimality of partial smash products: the general partial-action analogue of the Cohen–Fishman–Linchenko–Montgomery question

    未解决约 10 年
  6. Unconditional semiprimality and semiprimitivity transfer for partial smash products of semisimple Hopf algebra actions

    未解决约 10 年
  7. Prime and semiprime smash products for finite-dimensional pointed Hopf algebra actions beyond quantum linear spaces

    未解决约 7 年
  8. Classifying finite-dimensional Hopf algebras whose actions force a nilpotent Jacobson radical on invariant rings

    未解决约 8 年
  9. Intrinsic criteria for equality of the graded and ordinary Jacobson radical of finite groupoid graded algebras beyond trace invertibility

    未解决约 7 年
  10. The Cohen–Fischman semiprime smash product question and Jacobson-radical stability for Hopf actions on PI-algebras

    未解决约 40 年
模李代数模表示论中的卡茨-Weisfeiler(Kac-Weisfeiler)猜想8 个问题
  1. The super Kac-Weisfeiler divisibility property for the strange classical Lie superalgebras q(n)q(n) and p~(n)\tilde p(n)

    未解决约 18 年
  2. Super Kac–Weisfeiler divisibility for arbitrary restricted Lie superalgebras: irreducible module dimensions, the maximal-locus statement, and support-variety refinements

    未解决约 18 年
  3. The first Kac–Weisfeiler conjecture for restricted Lie algebras and the index of algebras with isomorphic enveloping algebras

    未解决约 55 年
  4. Tikaradze's Kac–Weisfeiler-type conjecture for filtered algebras in positive characteristic: i(χ)≥12s(χ)i(\chi)\ge\tfrac{1}{2}s(\chi)

    未解决约 16 年
  5. The second Kac-Weisfeiler divisibility conjecture for truncated current Lie algebras

    未解决约 55 年
  6. Effective thresholds for the first Kac–Weisfeiler conjecture in large characteristics and the Frobenius-characterisation conjecture for arbitrary restricted Lie algebras

    未解决约 55 年
  7. Super first Kac–Weisfeiler conjecture for finite-dimensional restricted Lie superalgebras

    未解决约 55 年
  8. Minimal-dimensional representations of finite WW-superalgebras and attainability of the super Kac–Weisfeiler bounds (Zeng–Shu Conjecture 0.3)

    未解决约 11 年
拟线性双曲型方程组由特征向量引发的奇性6 个问题
  1. No shock formation for totally linearly degenerate quasilinear hyperbolic systems: the C0⇒C1C^0\Rightarrow C^1 conjecture beyond block-structured classes

    未解决约 42 年
  2. Majda's no-shock conjecture for one-dimensional linearly degenerate quasilinear hyperbolic systems: ODE-type amplitude blowup versus shock formation

    未解决约 42 年
  3. Majda's conjecture: ODE-type singularity for linearly degenerate quasilinear hyperbolic systems

    未解决约 42 年
  4. Majda's conjecture: ODE-type singularity formation for one-dimensional quasilinear hyperbolic systems with linearly degenerate characteristic fields

    未解决约 42 年
  5. Global regularity versus finite-time singularity formation in linearly degenerate dissipative relativistic fluid models

    未解决约 2 年
  6. Spectral-data regularity and normalized coordinates for quasilinear hyperbolic systems with non-constant characteristic multiplicity

    未解决约 19 年
纽结的交叉点数的计算和可加性7 个问题
  1. Additivity of the crossing number of knots under connected sum (Tait's problem; Kirby Problem 1.65)

    未解决约 149 年
  2. The satellite crossing number conjecture

    未解决约 30 年
  3. Additivity of the triple-crossing number under connected sum and sharpness of the genus lower bound

    未解决约 6 年
  4. Constancy of the quadratic Jones-slope coefficient functions in the colored Jones degree quasipolynomials of a knot

    未解决约 5 年
  5. Monotonicity of the crossing spectrum of knots and the additivity threshold for multi-crossing numbers

    未解决约 12 年
  6. Additivity of the crossing number under connected sum of knots

    未解决约 31 年
  7. Completing the restricted-Reidemeister-move route to crossing-number additivity: robust diagram invariants and a topological interpretation of the restricted move set (Weinstein 2025, Questions 1-2)

    未解决不足 1 年
纽结的解结数的计算和可加性6 个问题
  1. The band-unknotting number of the double twist knots C(22+8k,62+8k)C(22+8k,62+8k)

    未解决不足 1 年
  2. The unknotting number of the knot 10610_6: deciding between 22 and 33

    未解决不足 1 年
  3. Does the unknotting number of a connected sum of knots grow with the number of summands?

    未解决约 49 年
  4. Exact unknotting numbers of the connected sums T(2,k) # T(2,−k)T(2,k)\,\#\,T(2,-k) of two-strand torus knots with their mirrors, and exact Reidemeister move counts for unlinking

    未解决约 15 年
  5. Quasi-additivity of the Delta-unknotting number, a strand-independent braid-knot constant, and primality of knots with Delta-unknotting number one

    未解决不足 1 年
  6. How badly unknotting number fails to be additive under connected sum: the max bound, universally additive knots, and the exact value of u(71#71‾)u(7_1\#\overline{7_1})

    未解决约 1 年
欧拉常数的超越性10 个问题
  1. Apéry-type rational approximations to Euler's constant: a second-order homogeneous recurrence construction, or integer linear forms in 1 and γ of better-than-sub-exponential quality

    未解决约 47 年
  2. Is Euler's constant a value of an arithmetic Gevrey series? Membership of γ\gamma in the rings E\mathbf{E}, G\mathbf{G} and D\mathbf{D}

    未解决约 3 年
  3. The arithmetic nature of the Euler–Gompertz constant: irrationality and transcendence of δ=eE1(1)\delta=eE_1(1)

    未解决约 58 年
  4. Irrationality and arithmetic nature of the Euler–Mascheroni constant

    未解决约 126 年
  5. Arithmetic nature of the linear combinations γ+αδ\gamma+\alpha\delta of the Euler–Mascheroni and Euler–Gompertz constants for α≠1/e\alpha\neq 1/e

    未解决约 292 年
  6. Arithmetic nature of the non-trivial zeros of the Riemann zeta function and of their power sums f(x)=∑ρxρ/ρf(x)=\sum_\rho x^\rho/\rho at algebraic arguments

    未解决约 8 年
  7. Unconditional algebraic independence of the logarithmic parts of generalized Euler–Briggs constants (removing the Weak Schanuel hypothesis in Gun–Murty–Saha)

    未解决约 10 年
  8. Occurrence of the exceptional algebraic generalized Euler–Briggs constant γ(Ω,a,q)\gamma(\Omega,a,q) in the families of Gun–Saha–Sinha

    未解决约 16 年
  9. Erdős's conjecture on the non-vanishing of L(1,f)L(1,f) for ±1\pm1-valued periodic functions (Erdősian functions)

    未解决约 61 年
  10. Determine the arithmetic nature of generalized Euler–Kronecker constants of number fields (algebraic or transcendental)

    未解决约 295 年
欧拉方程整体L∞L^{\infty}弱解的适定性问题8 个问题
  1. Beyond the Yudovich class for the 2D Euler equations: propagating localized instability to full non-uniqueness of unforced LpL^p weak solutions, Gevrey-type well-posedness, and the self-similar structure of the algebraic singularity

    未解决约 39 年
  2. Existence of global energy-admissible weak solutions of the incompressible Euler equations for arbitrary initial data in the energy space

    未解决约 15 年
  3. Uniqueness versus non-uniqueness for the 2D incompressible Euler equations with vorticity in LpL^p, p<∞p<\infty (the Yudovich gap)

    未解决约 39 年
  4. Well-posedness of the 2D Euler equations with bounded, non-decaying planar vorticity: uniqueness of Yudovich-type limits beyond symmetry and far-field prescriptions

    未解决约 9 年
  5. Existence of energy-admissible global weak solutions to the incompressible Euler equations for arbitrary L2L^2 initial data

    未解决约 15 年
  6. Existence of invariant measures for the 2D stochastic Euler equations driven by linear multiplicative noise on a bounded domain

    未解决约 3 年
  7. Well-posedness of the two-dimensional Euler equations with merely bounded vorticity in wide planar sectors and general unbounded domains (the Caprino–Marchioro one-point Green-function conjecture)

    未解决约 17 年
  8. Uniqueness for the two-dimensional incompressible Euler equations with unbounded LpL^p vorticity

    未解决约 63 年
庞加莱(Poincaré)圆盘上调和映射的舍恩(Schoen)猜想4 个问题
  1. Finite non-transversality of positive maps into flag varieties for general Guichard–Wienhard positive structures

    未解决不足 1 年
  2. Harmonic diffeomorphisms between Euclidean and hyperbolic model spaces: the open non-symmetric and higher-dimensional cases of Schoen's problem

    未解决约 33 年
  3. Nonvanishing of the Jacobian for harmonic quasiconformal mappings in dimensions n≥4n\ge4 (Problem 7.3 of Todorčević, 2019)

    未解决约 11 年
  4. Nonexistence of harmonic diffeomorphisms from the disk onto a complete parabolic plane (Mazet–Rodríguez–Rosenberg conjecture)

    未解决约 10 年
彭罗斯(Penrose)猜想6 个问题
  1. The Penrose inequality for general (non-time-symmetric) asymptotically flat initial data sets

    未解决约 52 年
  2. The sharp Penrose inequality for asymptotically (locally) hyperbolic initial data

    未解决约 27 年
  3. Penrose inequality and positive mass theorem under averaged dominant energy conditions beyond spherical symmetry

    未解决约 1 年
  4. Extremal Reissner–Nordström–Tangherlini rigidity at equality in the charged positive mass inequality for higher-dimensional black-hole initial data

    未解决约 12 年
  5. The Penrose inequality for general asymptotically flat initial data sets beyond the 2-convexity condition

    未解决约 53 年
  6. Lower bounds for black hole area in terms of mass, charge, and angular momentum: minimal enclosing area, multiple black holes, and rigidity

    未解决约 13 年
平面向量场不变曲线次数的庞加莱(Poincaré)问题5 个问题
  1. Divergent separatrices of holomorphic foliations on the complex projective plane with a unique singular point: an explicit saddle-node example and rigorous divergence for the Alcántara–Mozo-Fernández nilpotent family

    未解决约 3 年
  2. Characterizing when the index–Diophantine strategy bounds the degrees of algebraic solutions of non-degenerate polynomial differential equations

    未解决约 8 年
  3. Realizability of the pure algebraic multiplicity and topological invariance of the algebraic multiplicity for dicritical foliation germs (Genzmer–Mol's open questions)

    未解决约 10 年
  4. The algebraic-critical case of the Poincaré problem: which local algebraic solutions extend to global invariant algebraic curves

    未解决约 21 年
  5. Genus-one rational first integrals and intrinsic dicritical bounds in the effective Poincaré problem for foliations of the projective plane

    未解决约 14 年
齐性爱因斯坦(Einstein)流形8 个问题
  1. Splitting of complete negative Einstein manifolds with cocompact connected Lie group symmetry: Conjecture 1.1 of Böhm–Lafuente without unimodularity

    未解决约 3 年
  2. The Böhm–Lafuente splitting conjecture for negative Einstein manifolds with cocompact isometric symmetry

    未解决约 3 年
  3. Which compact homogeneous spaces admit an invariant Einstein metric: completing the topological existence criteria of Wang–Ziller, Böhm, and Graev

    未解决约 40 年
  4. Globke–Nikolayevsky conjecture: every compact pseudo-Riemannian Einstein solvmanifold is a nilmanifold

    未解决约 9 年
  5. The dynamical Alekseevskii conjecture in dimensions six and above

    未解决约 9 年
  6. Which nilpotent Lie algebras are Einstein nilradicals? (Lauret–Will Problem 3 and the positive-graph question)

    未解决约 20 年
  7. The Böhm–Wang–Ziller Finiteness Conjecture: finiteness of invariant Einstein metrics on compact homogeneous spaces

    未解决约 22 年
  8. Finiteness of the moduli space of invariant Einstein metrics on a compact homogeneous space

    未解决约 22 年
奇点解消7 个问题
  1. Extension of the idealistic filtration resolution algorithm to ambient dimension 4 and above in positive characteristic (Kawanoue–Matsuki)

    未解决约 14 年
  2. Resolution of the monomial case of the Idealistic Filtration Program in positive characteristic in dimension four and higher

    未解决约 11 年
  3. Gluing local resolutions into a global resolution over perfect fields, and geometric resolution of singular moduli spaces (open problems from Hu's 'Grassmannians and Singularities')

    未解决约 62 年
  4. Canonical resolution of singularities in positive and mixed characteristic via cobordant blow-ups at weighted centers

    未解决约 4 年
  5. Embedded resolution of singularities in positive characteristic: stability of the residual order under permissible blowups and the existence of a terminating resolution invariant

    未解决约 62 年
  6. Forced point centers and the residual-order cycle obstruction to resolution of singularities in positive characteristic

    未解决约 8 年
  7. Canonical functorial resolution of singularities in positive characteristic: extending McQuillan's characteristic-zero invariant beyond equicharacteristic zero

    未解决约 61 年
奇异基数问题4 个问题
  1. Consistency strength of Ord-long strictly increasing iterates of Shelah's pcf operator

  2. Class-many strong limit singular cardinals with 2ℵδ<ℵ(∣δ∣+3)2^{\aleph_\delta}<\aleph_{(|\delta|^{+3})} in ZFC (Garti's Conjecture 3.4 on weak diamond and pcf theory)

  3. Stationary reflection with the failure of SCH at a singular cardinal of uncountable cofinality without supercompactness

  4. The residual program for Shelah's approachability ideal at successors of singular cardinals: uniform non-approachability, global failure of SCH and approachability, Woodin's AP-versus-SCH question, and the Tree Property at every successor of a singular (Jakob-Poveda, Questions 5.1-5.4)

嵌入猜想9 个问题
  1. An explicit counterexample to Connes' embedding conjecture: a concretely presented type II1_1 factor not embedding into an ultrapower of the hyperfinite factor

    未解决约 6 年
  2. The GNRS conjecture for minor-excluding graph families: the planar embedding and kk-sum conjectures

    未解决约 27 年
  3. Strong embeddings of 3-connected cubic planar graphs on surfaces of negative Euler characteristic

    未解决约 2 年
  4. The Dèbes–Deschamps conjecture: regular Galois solvability of finite split embedding problems over k(T)k(T) for an arbitrary field kk

    未解决约 29 年
  5. Abhyankar–Sathaye embedding conjecture for hypersurfaces in affine space

    未解决约 52 年
  6. The planar embedding conjecture: constant-distortion embeddings of planar graph metrics into L1L_1

    未解决约 26 年
  7. Regularity of the left-Garside category LD+ and the Embedding Conjecture for free left-self-distributive systems

    未解决约 17 年
  8. The convex greedy embedding conjecture for 3-connected planar graphs and the Tutte spring-weight question

    未解决约 22 年
  9. Existence of the enforceable II1_1 factor

    未解决约 9 年
求解无界区域非线性偏微分方程的人工边界方法7 个问题
  1. Explicit time-step bounds and Padé artificial-boundary-condition modeling error for the nonlinear time-fractional Burgers equation on unbounded domains

    未解决约 5 年
  2. Higher-order, multi-dimensional fast discretizations with exact fractional artificial boundary conditions for the time-fractional Schrödinger equation on unbounded domains

    未解决约 9 年
  3. Pressure-type artificial boundary conditions for steady Navier-Stokes flows in pipe systems beyond the small-data regime

    未解决约 19 年
  4. Higher-order diagonal Padé nonlinear absorbing boundary conditions for nonlinear time-fractional parabolic problems on unbounded domains

    未解决约 10 年
  5. Efficient and provably stable numerical realization of exact artificial boundary conditions for heat equations with nonlinear boundary conditions on unbounded domains

    未解决约 19 年
  6. Stability, error, and convergence analysis of the artificial boundary method for the two-dimensional Burgers equation on unbounded domains

    未解决约 18 年
  7. Discrete H1H^1 error estimates and higher-order-in-time boundary discretizations for the artificial-boundary finite difference scheme for nonlinear Schrödinger equations on unbounded domains

    未解决约 8 年
求解线性代数方程组的最优方法6 个问题
  1. Convergence of AdaRBFGS: adaptive randomized BFGS matrix inversion with iterate-dependent sketching

    未解决约 10 年
  2. Truly linear working space and the bit-time frontier for rational linear-system solvers with entrywise multiplicative guarantees

    未解决约 1 年
  3. Certified construction of Lagrange-principle optimal recovery methods for finite-dimensional linear systems: the general mixed-constraint case

    未解决约 19 年
  4. The Time Complexity of Solving Dense Linear Systems with k Large Singular Values: Logarithmic Factors, Matrix-Multiplication Dependence, and Derandomization

    未解决约 2 年
  5. Parameter selection for the HSS preconditioner: transfer of condition-number-balancing estimates from the HSS iteration and matrix-free parameter estimation

    未解决约 10 年
  6. Stochastic preconditioning: designing the reformulation parameters (B, D) to minimize the condition number zeta(A, B, D) in stochastic reformulations of linear systems

    未解决约 9 年
球和代数区域的刚性6 个问题
  1. Sharp degree bounds for rational proper holomorphic maps between balls: the D'Angelo conjecture and the classification of valid quadruples (n, r, d, k)

    未解决约 37 年
  2. Sharp degree bounds for rational proper maps between balls of maximal geometric rank: sharpness at minimal target dimension and the above-minimal regime (Problem (D))

    未解决约 33 年
  3. Rigidity of proper holomorphic maps between unit balls with non-compact symmetry at low Hölder boundary regularity

    未解决约 25 年
  4. D'Angelo's degree conjecture for rational proper holomorphic maps between complex unit balls: unresolved regimes beyond the third gap interval

    未解决约 33 年
  5. Group data versus map data for rational proper maps of balls: detection of map invariants from the associated symmetry groups

    未解决约 9 年
  6. Classifying local orthogonal pairs and generalized Huang equations between hyperquadrics at the borderline dimension n′=2(r+s)−2n'=2(r+s)-2

    未解决约 2 年
球极函数的提升Pieri型公式7 个问题
  1. Affine Pieri rule for periodic Macdonald spherical functions of the excluded twisted type BC^n=A2n(2)\widehat{BC}_n=A^{(2)}_{2n}, and identification of the deformed fusion ring with deformed Verlinde algebras

    未解决约 4 年
  2. Schur positivity of the 1,n1,n-Macdonald polynomials and the positive GLl\mathrm{GL}_l-character expansion of the Macdonald series Hμ\mathbf{H}_\mu

    未解决约 3 年
  3. Mixed-type twisted Pieri formulas for Jack polynomials

    未解决约 5 年
  4. Explicit Pieri formulas for Macdonald spherical functions and polynomials beyond small dominant weights

    未解决约 23 年
  5. Twisted Pieri formulas beyond type AA: extensions to BCBC-type root systems, (q,t)(q,t)-Macdonald polynomials, and elliptic analogues

    未解决约 6 年
  6. Factorized product forms for the Pieri-type coefficients of nonsymmetric Macdonald polynomials and the effective choice of the reduction index

    未解决约 16 年
  7. A Pieri-type multiplication rule for spherical functions: Bravi–Gandini Conjecture 1.1 for spherical pairs of type A (including F4/Spin(9)) and the Hermitian symmetric cases of types B, C, BC

    未解决约 5 年

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