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123 papers in math.GN · page 2

  1. math.GN 2026-04-16 reviewed
    Transfinite wild ranks are homotopy invariants realizable by Peano continua

    Transfinitely iterated wild sets

    Jeremy Brazas +1

  2. math.LO 2026-04-15 reviewed
    Logic model characterizes harmonic manifolds for n at most 2

    Saturation and isomorphism of abstract harmonic spaces

    Haoming Wang

  3. math.GN 2026-04-15 reviewed
    Modulus density points recover Lebesgue density theorem

    A generalization of the Lebesgue density theorem via modulus density

    H. S. Behmanush +1

  4. math.GT 2026-04-15 reviewed
    Coverings of perforated surfaces come from ordinary surface coverings

    On the fundamental groups of perforated surfaces

    Khushbu Gulati +1

  5. math.GN 2026-04-14 reviewed
    1-cycles in crypto phase space track risk

    Topological Complexity and Phase Space Stability: A Persistent Homology Approach to Cryptocurrency Risk

    Gabriel Santana +1

  6. math.GN 2026-04-14 reviewed
    Counterexample disproves converse of Borsuk fan theorem

    The converse to Borsuk's result on fans fails

    Benjamin Vejnar

  7. math.SG 2026-04-09 reviewed
    Trivial π₂ forces non-zero Maslov class for Lagrangians

    The topology of Lagrangian submanifolds via open-closed string topology

    Shuhao Li

  8. math.GN 2026-04-09 reviewed
    Countable Boolean topological groups have closed discrete bases

    Any countable topological $\mathbb F_p$-vector space has a closed discrete basis

    Ol'ga Sipacheva

  9. math.GN 2026-04-09 reviewed
    Countable F_p-vector spaces have closed discrete bases

    Any countable topological $\mathbb F_p$-vector space has a closed discrete basis

    Ol'ga Sipacheva

  10. math.DS 2026-04-08 reviewed
    Cantor set dynamics lift to fence spaces

    Dynamics on fences

    Jernej \v{C}in\v{c} +2

  11. math.SP 2026-04-08 reviewed
    Eigenvalue collisions allow exotic spectrum preservers

    Eigenvalue collision and exotic preservers on semisimple operators

    Alexandru Chirvasitu

  12. math.GN 2026-04-07 reviewed
    Real line carries 2^c non-homeomorphic coarse topologies

    Many coarse topologies on the real line

    Gerald Kuba

  13. math.GN 2026-04-07 reviewed
    New extension property identifies universal retractions on Urysohn space

    Topological size of the set of universal and ultrahomogeneous retractions on the Urysohn space

    Judyta B\k{a}k +2

  14. math.GN 2026-04-07 reviewed
    Forcing notions prove some graphs have no countable alpha-Borel colorings

    Topology, forcing, and graph colourings

    Noam Greenberg +3

  15. math.OA 2026-04-06 reviewed
    Torsion-free acylindrically hyperbolic groups satisfy relative ISR

    On Relative Invariant Subalgebra Rigidity Property

    Tattwamasi Amrutam

  16. math.GN 2026-03-28 reviewed
    Every compact set on a closed surface has a core atom decomposition

    Atoms of Compacta on Closed Surfaces

    Jun Luo +3

  17. math.GN 2026-03-25 reviewed
    Refined test spots Cauchy sequences in db-metric spaces

    A criterion for Cauchy sequences in db-metric spaces

    Lech Pasicki

  18. math.GN 2026-03-20 reviewed
  19. math.GN 2026-03-03 reviewed
    Reentry on extended reals yields first path-connected compact US-not-KC space

    The Extended Real Line with Reentry: Separating US from KC in the Clontz Hierarchy

    Damian Rafael Lattenero

  20. math.GN 2026-02-17 reviewed
    Smooth sublocales equal Bruns-Lakser completion of locally closed ones

    The lattice of smooth sublocales as a Bruns-Lakser completion

    Igor Arrieta +1

  21. math.GN 2026-01-20 reviewed
    Spaces embed into function spaces to lift partial actions

    On {\Gamma}-embeddings and partial actions of function spaces

    Luis A. Mart\'inez-S\'anchez +2

  22. math.GN 2026-01-07 reviewed
    Non-meager products of separable spaces are generalized Namioka spaces

    On generalized Namioka spaces and joint continuity of functions on product of spaces

    Xiongping Dai +2

  23. math.DS 2026-01-04 reviewed
    Median algebra rank equals independence number of its maps

    Tameness of actions on finite rank median algebras

    Michael Megrelishvili

  24. math.SP 2026-01-03 reviewed
    Normal-matrix preservers reduce to conjugations or eigenvalue orderings

    The combinatorics of permuting and preserving curve-bound spectra

    Alexandru Chirvasitu

  25. math.GN 2025-12-19 reviewed
    Convex uniform structures compactify circular orders

    Circular orders: topology and continuous actions

    Michael Megrelishvili

  26. math.GN 2025-12-11 reviewed
    Countable compactness lets groups act on joins

    Discontinuous actions on cones, joins, and $n$-universal bundles

    Alexandru Chirvasitu

  27. math.OA 2025-12-06 reviewed
    CH classifies all projection masas in the Calkin algebra

    On masas of the Calkin algebra generated by projections

    Piotr Koszmider

  28. math.GN 2025-11-29 reviewed
    Two regular isodyne spaces of size ω₁ yield an ω-resolvable product

    Resolvability in products of spaces of small cardinality

    Anton Lipin

  29. math.GN 2025-11-15 reviewed
    CH yields normal Sorgenfrey square on non-λ-set

    Normality in the square of the Sorgenfrey Line

    Paul Szeptycki +1

  30. math.LO 2025-10-30 reviewed
  31. math.GR 2025-10-28 reviewed
    Pontryagin duality questions arise for abelian pro-Lie groups

    Some notes on Pontryagin duality of abelian topological groups

    Linus Kramer +1

  32. math.OA 2025-10-28 reviewed
    Injective envelope is the maximal rigid multiplier cover

    Hamana's injective envelope as a maximal rigid multiplier cover

    Tomasz Kania

  33. math.LO 2025-10-22 reviewed
    Non-Nikodym generated algebras also lack Grothendieck property

    The Nikodym and Grothendieck properties of Boolean algebras and rings related to ideals

    Damian Sobota +1

  34. math.FA 2025-09-10 reviewed
    Compact X scattered iff every C_p(X) subspace has complemented c_0

    Lotz-Peck-Porta and Rosenthal's theorems for spaces $C_p(X)$

    Jerzy K\k{a}kol +2

  35. math.GT 2025-09-05 reviewed
    Universal brackets recover skein modules for annular and toroidal knotoids

    From annular to toroidal knotoids and their universal bracket polynomials

    Ioannis Diamantis +2

  36. math.RA 2025-08-19 reviewed
    Infinite sums alone yield a refined topology and new quotients

    Algebraization of infinite summation

    Pace P. Nielsen

  37. math.GN 2025-08-19 reviewed
    Orderable groups with ω^ω-bases are metrizable

    Suitable sets for topological groups revisited

    Fucai Lin +3

  38. math.GN 2025-06-26 reviewed
    Magnitude is continuous on tractable metric spaces

    Tractable Metric Spaces and Magnitude Continuity

    Sara Kali\v{s}nik +1

  39. math.AG 2025-06-26 reviewed
    Deligne pro-sheaves match Clausen-Scholze solid modules for j_!

    Coherent six-functor formalisms: Pro vs Solid

    Fei Ren

  40. math.NT 2025-06-18 reviewed
    Non-normal numbers are super-dense while normal numbers are not

    Super-Dense Sets and Their Role in the Theory of Normal Numbers

    Chokri Manai

  41. math.AG 2025-04-03 reviewed
    Fixed loci of groupoids equal real loci of DM stacks over R

    Topological groupoids with involution and real algebraic stacks

    Emiliano Ambrosi +1

  42. math.MG 2025-04-03 reviewed
    Sphere-to-R^n maps require additive distortion of at least a parity-dependent formula

    Distortion from spheres into Euclidean spaces

    James Dibble

  43. math.GN 2025-02-24 reviewed
    Contact relation cannot define interior-connectedness

    On Nondefinability of Interior-Connectedness via the Contact Relation

    Rafa{\l} Gruszczy\'nski +1

  44. math.GN 2025-01-31 reviewed
    Poset of connected pieces yields unifying connectivity taxonomy

    What is Connectivity?

    Jean F. Du Plessis +2

  45. math.LO 2024-06-10 reviewed
    α-balanced Polish groups stratify TSI to CLI hierarchy

    The class and dynamics of $\alpha$-balanced Polish groups

    Shaun Allison +1

  46. math.GN 2024-05-08 reviewed
    Tranched graphs unify quasi-graphs and sin(1/x) continua

    Tranched graphs: consequences for topology and dynamics

    Micha{\l} Kowalewski +1

  47. math.CO 2024-04-26 reviewed
    Edge-end spaces form a proper subclass of graph end spaces

    Topological remarks on end and edge-end spaces

    Leandro Fiorini Aurichi +2

  48. math.CT 2024-04-13 reviewed
    Every V-normed category has a correct-size Cauchy cocompletion

    Cauchy convergence in V-normed categories

    Maria Manuel Clementino +2

  49. math.AT 2024-01-16 reviewed
    Unique path lifting turns manifold maps into coverings

    On R-trees, homotopies, and covering maps

    Jeremy Brazas +3

  50. math.AC 2024-01-10 reviewed
    Qcqs scheme components are preimages from Spec of global sections

    Connected components of qcqs schemes and projective spaces

    Abolfazl Tarizadeh