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775 papers in math.FA · page 1

  1. math.FA 2026-05-22 reviewed
    Crystalline measures can fail translation boundedness as distributions

    On almost periodicity in crystalline measures

    Jan Maz\'a\v{c} +2

  2. math.FA 2026-05-22 reviewed
    Adjacent cross-sections yield new conditions on operator commutants

    Adjacent cross-sections of the commutant of Hilbert space operators

    L\'aszl\'o K\'erchy

  3. math.AP 2026-05-22 reviewed
    Pointwise bound removes singularities for p(x)-Laplace equations

    Pointwise Estimates Near Singular Sets for Quasilinear Elliptic Equations

    Juan Pablo Alcon Apaza

  4. math.FA 2026-05-22 reviewed
    Odometers induce new supercyclic composition operators on L_p

    On the dynamics of composition operators: supercyclicity, odometers and translations

    Fr\'ed\'eric Bayart (LMBP) +1

  5. math.FA 2026-05-22 reviewed
    Closed range theorem holds for unbounded antilinear operators

    Unbounded Antilinear Operators on Hilbert Spaces

    Arup Majumdar

  6. math-ph 2026-05-22 reviewed
    Floquet-Magnus expansion works for unbounded Hamiltonians

    The Floquet-Magnus expansion of unbounded operators

    Daniel Burgarth +3

  7. math.FA 2026-05-22 reviewed
    Abstract conditions guarantee closed subspaces of operators

    A unifying approach to closed subspaces of linear and multilinear operators

    Geraldo Botelho +1

  8. math.FA 2026-05-22 reviewed
    Bogoliubov linearization reduces nonlinear variational problems to linear ones

    Abstract Theory of Bogoliubov Linearizations with Application to Nonlinear Thermodynamic Formalism

    Jean-Bernard Bru +2

  9. math.FA 2026-05-22 reviewed
    Leverage-score sampling achieves stable signal recovery at m ~ n log n

    Stochastic Generalized Sampling

    Luca Finotti +1

  10. cs.LG 2026-05-22 reviewed
    Limit space makes any-size input models universal

    Any-Dimensional Invariant Universality

    Shengtai Yao +2

  11. math.FA 2026-05-22 reviewed
    Ordered zero-sum sequence yields nonnegative sum for odd convex phi

    Inequalities on a Class of Function Sets

    Gangsong Leng

  12. math.CA 2026-05-21 reviewed
  13. math.FA 2026-05-21 reviewed
    L∞ satisfies Vitali-Carathéodory without N^{1,∞} quasicontinuity

    Quasicontinuity of $N^{1,\infty}$ functions and the Vitali-Carath\'eodory property on general metric spaces

    Anders Bj\"orn +1

  14. math.FA 2026-05-21 reviewed
    P-Schatten Grassmannian is affine coadjoint orbit for p in [1,2]

    The Restricted Schatten-class Grassmannian $\mathrm{Gr}_{\mathrm{res}, p}(\mathcal{H})$ as affine coadjoint orbit

    Amin Tahiri +1

  15. math.FA 2026-05-21 reviewed
    Neural nets with dual functionals dense in C(K)

    Density of Neural Network Classes on Compact Subsets of Topological Vector Spaces

    Mohammad Javad Baghbanbashi +1

  16. math.NT 2026-05-21 reviewed
    Zeta(-n) = -B_{n+1}/(n+1) from Cesaro limits of distributions

    A quick distributional way to reproduce some results of the Riemann zeta function

    Junfa Deng +2

  17. math.AP 2026-05-21 reviewed
    Reiterated homogenization yields macroscopic Navier-Stokes model

    On the non-stationary Navier-Stokes flows and reiterated homogenization

    Lazarus Signing

  18. math.FA 2026-05-21 reviewed
    Heaviside Fourier transform derived with freshman calculus only

    A simple derivation of the Fourier transform of the Heaviside function

    Robert C. Dalang

  19. math.FA 2026-05-21 reviewed
    Heaviside Fourier transform derived rigorously with basic calculus

    A simple derivation of the Fourier transform of the Heaviside function

    Robert C. Dalang

  20. math.FA 2026-05-21 reviewed
    Spectra of hyperbolic weighted composition generators characterized

    Spectra of generators of hyperbolic composition and weighted composition semigroups

    Yong-Xin Gao +1

  21. math.FA 2026-05-21 reviewed
    Hahn-Banach theorem alone yields non-measurable sets

    Life without "Choice"

    M. A. Sofi

  22. math.FA 2026-05-21 reviewed
    Normality and generation are dual in matricial order spaces

    On Matricial Order Operator Spaces

    Roy Araiza +1

  23. math.FA 2026-05-20 reviewed
    Multiplicative functionals on RKHS fixed by kernel values

    Multiplicative linear functionals on reproducing kernel Hilbert spaces

    Tirthankar Bhattacharyya +2

  24. math.FA 2026-05-20 reviewed
    Component-wise conditions give nine fixed points in product spaces

    Hybrid and Component-wise Leggett-Williams type Fixed Point Theorems in Product Spaces with Applications

    Laura Mar\'ia Fern\'andez-Pardo

  25. math.FA 2026-05-20 reviewed
    B(ℓ_p) satisfies uniform primary factorisation

    Primariness and the Primary Factorisation Property

    Antonio Acuaviva +1

  26. math.FA 2026-05-20 reviewed
    Maximal operator bounded on generalized Fofana spaces

    Boundedness of the Hardy-Littlewood maximal operator on generalized fofana spaces

    Pokou Nagacy +2

  27. math-ph 2026-05-20 reviewed
    Any extension of the limiting Jacobi operator arises along some sequence to zero

    Essentially singular limits of Jacobi operators and applications to higher-order squeezing

    Felix Fischer +2

  28. math.FA 2026-05-20 reviewed
    Composition operators on holomorphic Lipschitz spaces characterized

    Composition operators for holomorphic Lipschitz functions

    Ver\'onica Dimant +3

  29. math.FA 2026-05-20 reviewed
    Nonnegative rank equals rank for positive operators of rank at most two

    On the nonnegative rank of positive operators

    Roman Drnov\v{s}ek +1

  30. math.FA 2026-05-20 reviewed
    Toeplitz operators A_ϕ and D_ϕ are partially isometric iff v divides θ

    Partially isometric truncated and dual truncated Toeplitz operators

    Kritika Babbar +2

  31. math.FA 2026-05-20 reviewed
    Boundary operator squares to zero when links recur

    The complex property of the boundary operator on simplicial complexes

    Philipp Bartmann +1

  32. math.FA 2026-05-20 reviewed
    m-Chatterjea mapping has unique fixed point with k-continuity

    Another Perspective on Chatterjea Contraction

    Shallu Sharma +2

  33. math.FA 2026-05-20 reviewed
    Extreme points fix gauge-reversing bijections on affine functions

    Bijections on the set of extreme points in a compact convex set

    Anil Kumar Karn +1

  34. math.FA 2026-05-20 reviewed
    Atomic decompositions obtained for matrix-weighted variable Hardy spaces

    Atomic Characterization and Its Applications of Matrix-Weighted Variable Hardy Spaces

    Yiqun Chen +3

  35. math.FA 2026-05-19 reviewed
    Gaussian STFT achieves local L2-stable phase retrieval at constants

    $L^2$-Stability for STFT phase retrieval

    Susanna Bertolini +4

  36. math.FA 2026-05-19 reviewed
    Metric condition selects compact spaces that solve all eikonal equations

    The reach and limits of slope eikonal equations in compact spaces

    David Salas +2

  37. math.FA 2026-05-19 reviewed
    Brascamp-Lieb inequality bounds fractal dimensions from projections

    Brascamp--Lieb inequalities for fractal dimensions

    Jonathan M. Fraser

  38. cs.LG 2026-05-19 reviewed
    Rank-2 neural generators reach any orthonormal basis from Fourier

    Learning Orthonormal Bases for Function Spaces

    Hamidreza Kamkari +2

  39. math.GR 2026-05-19 reviewed
    Vanishing of W(G,N) equates mixed and ordinary stable commutator lengths

    Coarse geometry of stable mixed commutator length I: duality and functional analysis on chains

    Morimichi Kawasaki +4

  40. math.AP 2026-05-19 reviewed
    Integral equations apply to scattering by multifractal obstacles

    Integral Equation Methods for Scattering by Multifractal Obstacles

    Simon N. Chandler-Wilde (UOR) +4

  41. math.FA 2026-05-19 reviewed
    von Neumann-Jordan constant extends to non-normable metrics

    A von Neumann-Jordan Constant of Non-Normable Metrics

    Doan Huu Hieu +1

  42. math.ST 2026-05-18 reviewed
    Inference functionals give consistency for models without densities

    Inference Functionals and Observation Operators for Distributional Statistical Models

    R. Labouriau

  43. math.FA 2026-05-18 reviewed
    Hypercube spherical means lack dimension-free variation bounds

    Dimension dependence and dimension-free $\ell^2$ estimates for variation seminorms of spherical means on the hypercube

    Rafa{\l} {\L}y\.zwa

  44. cs.LG 2026-05-18 reviewed
    Pointwise feature eigenvalues give tight DNN generalization bounds

    Pointwise Generalization in Deep Neural Networks

    Shaojie Li +1

  45. math.FA 2026-05-18 reviewed
    Semisimple algebras have one or uncountably many uniform norms

    On Multiplicity of Uniform Norms and Maximal Spectral Substructures in Commutative Banach Algebras

    Jekwin J. Dabhi +1

  46. math.FA 2026-05-18 reviewed
    Characterization of maps preserving positive decomposable vectors

    Positive Linear Maps on Second Symmetric Product Spaces

    Pavankumar Raickwade +1

  47. math.CA 2026-05-18 reviewed
    Gabor systems form unconditional frames in L^p for p>2 on characterized sets

    Gabor unconditional bases and frames in $L^p(\mathbb{R})$

    Nir Lev +1

  48. math.OC 2026-05-18 reviewed
    Explicit isomorphism yields quantitative rapid stabilization

    Quantitative Fredholm backstepping and rapid stabilization

    Ludovick Gagnon +4

  49. math.FA 2026-05-18 reviewed
    Finite rank H(B) spaces equal domains of Toeplitz adjoints

    Unbounded Toeplitz operators and finite rank de Branges-Rovnyak spaces

    Soumitra Ghara +2

  50. math.CO 2026-05-18 reviewed
    Pinching correction fixes refined BMV upper bound for m=2

    On the Failure of the Upper Bound in the Refined BMV Conjecture and a Pinching Correction

    Trung Hoa Dinh