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775 papers in math.FA · page 5

  1. math.CO 2026-04-29 reviewed
    Selective projection pattern yields generalized quantum Ramsey theorem

    A generalized infinite quantum Ramsey theorem for operator systems

    Jos\'e G. Mijares

  2. math.FA 2026-04-29 reviewed
    Maximal algebras of Schur block Toeplitz matrices fully classified

    Maximal Algebras of Block Toeplitz Matrices with Entries in the Schur Algebra

    Muhammad Ahsan Khan

  3. math.FA 2026-04-29 reviewed
    Small Hankel operators in Schatten classes yield product BMO symbols

    Recovering Product BMO from Schatten Hankel operators

    Konstantinos Bampouras +1

  4. math-ph 2026-04-29 reviewed
    Initial-data gauge fix yields Hadamard states for Maxwell on curved spacetime

    On the Quantisation of Linear Gauge Theories on Lorentzian Manifolds: Maxwell's Theory via Complete Gauge Fixing

    Gabriel Schmid

  5. math.FA 2026-04-29 reviewed
    Darboux and Riemann integrals coincide on Dedekind complete f-algebras

    The Riemann integral on Dedekind complete $f$-algebras

    Eder Kikianty +3

  6. math.FA 2026-04-29 reviewed
    Norm-additive bijections on C0 positive cones are weighted compositions

    Norm additive mappings between the positive cones of continuous function algebras

    Natsumi Shibata +1

  7. math.FA 2026-04-29 reviewed
    Triopoly equilibrium exists and is unique via coupled fixed points

    Equilibrium in the Canonical Stackelberg Triopoly via Response Functions and Fixed Point Theory

    Anton Badev +2

  8. math.AP 2026-04-29 reviewed
    Chagas dispersal operator generates analytic semigroup

    Analytic semigroup generated by the dispersal process of a sylvatic transmission model of Chagas disease

    Narimene Benarbia (LANLMA) +3

  9. math.OA 2026-04-29 reviewed
    ℓ^p-pseudofunctions yield isomorphic crossed product algebras for any representation

    Crossed product functors associated to $\ell^p$-pseudofunctions

    Jacek Krajczok +3

  10. math.FA 2026-04-29 reviewed
    Small-norm vectors lie close to kernel for onto operators with located kernels

    Closing in on the kernel of an operator between Banach spaces

    Douglas S. Bridges

  11. math.NA 2026-04-28 reviewed
    Weak greedy algorithms converge on dictionary octahedrons

    On weak greedy algorithms

    A.S. Spivak +1

  12. math.FA 2026-04-28 reviewed
    The paper proves that non-stable pure subnormal contractions on Hilbert spaces have…

    Non-stable subnormal contractions have nontrivial hyperinvariant subspaces

    Maria F. Gamal'

  13. quant-ph 2026-04-28 reviewed
    Quantum channels archive normal states into singular measures

    Quantum channels preserving sigma-additivity and Ulam measurable cardinals

    S. V. Dzhenzher

  14. quant-ph 2026-04-28 reviewed
    Quantum channels map normal states to singular sigma-additive states

    Quantum channels preserving sigma-additivity and Ulam measurable cardinals

    S. V. Dzhenzher

  15. math.FA 2026-04-28 reviewed
    Krylov solvability in Banach spaces blocked by missing complements

    Some results on Krylov solvability in Banach space and connections to spectral theory

    Noe Angelo Caruso

  16. math.FA 2026-04-28 reviewed
    Resolvent holomorphy links Krylov solvability in Banach spaces

    Some results on Krylov solvability in Banach space and connections to spectral theory

    Noe Angelo Caruso

  17. math.FA 2026-04-28 reviewed
    Rescaled fractional energies converge to double integrals and Dirichlet on torus

    $\Gamma$-convergence, variational analysis and characterisation of minimisers for $(s,p)$-Gagliardo energies in the flat $d$-torus

    G. Pini +1

  18. math.AP 2026-04-28 reviewed
    Spherical maximal functions reach weak type at L^p-L^q boundary

    Boundary estimates for the fractional spherical maximal function

    Riju Basak +2

  19. math.OA 2026-04-27 reviewed
    Relative property (T) forces invariant trace simplices to be Bauer

    Invariant trace simplices and relative property (T)

    Raz Slutsky

  20. math.FA 2026-04-27 reviewed
    Partial extended b-metric spaces unify prior generalizations

    Partial extended b-metric and some fixed point theorem

    Muhamad Abdillah Ahen +2

  21. math.FA 2026-04-27 reviewed
    Non-complete Daugavet space has fully smooth norm

    About smooth and non-poor subspaces of Daugavet spaces

    Samir Hamad

  22. math.FA 2026-04-27 reviewed
    Polynomial local functionals on convex functions admit finite integral forms

    Integral representation of polynomial local functionals on convex functions

    Jonas Knoerr

  23. math.OA 2026-04-27 reviewed
    Orbit space topology equals irreducible representation spectrum of uniform Roe algebra

    Dynamics in large scale geometry

    Bruno de Mendon\c{c}a Braga +2

  24. math.FA 2026-04-27 reviewed
    Lower bound on one semigroup operator yields bounded H infinity calculus

    $H^\infty$--functional calculus for generators of semigroups that admit lower bounds

    Benhard H. Haak +1

  25. math.FA 2026-04-26 reviewed
    Bourgain's K-closedness method extends to semicommutative setting

    Bourgain's method for K-closedness in the semicommmutative setting

    Hugues Moyart

  26. math.OA 2026-04-26 reviewed
    Banach-compact operators are those with A-precompact unit ball images

    Banach-compact operators, $\mathcal A$-precompactness, and frames in Hilbert $C^*$-modules

    Denis Fufaev +1

  27. cs.LG 2026-04-26 reviewed
    One non-affine edge function makes deep KANs universal

    Necessary and sufficient conditions for universality of Kolmogorov-Arnold networks

    Vugar Ismailov

  28. cs.LG 2026-04-26 reviewed
    One non-affine function makes deep KANs universal on compacts

    Necessary and sufficient conditions for universality of Kolmogorov-Arnold networks

    Vugar Ismailov

  29. math.FA 2026-04-26 reviewed
    Problem on one-sided positive Banach-Mazur distance solved

    On positive Banach-Mazur distance

    Maciej Korpalski +1

  30. math.FA 2026-04-26 reviewed
  31. math.OA 2026-04-26 reviewed
    Fourier algebra preduals admit conditional-expectation skeletons

    Projectional Skeletons of Fourier Algebras

    Onur Oktay

  32. math.FA 2026-04-25 reviewed
    3-Brownian shift extends classical version to bidisk space

    Invariant Subspaces and the $C_{00}$-Property of $3$-Brownian Shifts

    Rajkamal Nailwal

  33. math.FA 2026-04-25 reviewed
    T-extended weakly contractive maps coincide with Geraghty maps

    T Extended Weakly Contractive, Kannan, and Geraghty Mappings Fixed Points, Equivalences,

    Fatemeh Fogh +1

  34. math.OA 2026-04-25 reviewed
    Two norms on nonassociative L^p spaces agree in scale but not shape

    Spectral versus interpolation norms in tracial nonassociative $\mathrm{L}^p$-spaces

    C\'edric Arhancet +1

  35. math.FA 2026-04-25 reviewed
    Commutator [b,I_α] bounded from Orlicz-Hardy space to L^{n/(n-α)}

    Boundedness of commutator generated by fractional integral operator and Orlicz-BMO function

    Zixing Zhuang +2

  36. math.FA 2026-04-25 reviewed
    Matrix operators yield noncomplemented subspaces on the torus

    Nonexistence of Henkin type projections via a Wiener theorem for multipliers

    Eduard Curc\u{a} +1

  37. math.FA 2026-04-25 reviewed
    Real interpolation preserves Bourgain-Brezis divergence equality

    Bourgain-Brezis spaces obtained by real interpolation

    Eduard Curc\u{a}

  38. physics.class-ph 2026-04-24 reviewed
    Hahn-Banach derives entropy and temperature from Second Law without equilibrium

    How the Hahn-Banach Theorem Sheds Bright Light on Fundamental Questions in Classical Thermodynamics

    Martin Feinberg +1

  39. physics.class-ph 2026-04-24 reviewed
    Hahn-Banach theorem derives entropy and temperature from second law

    How the Hahn-Banach Theorem Sheds Bright Light on Fundamental Questions in Classical Thermodynamics

    Martin Feinberg +1

  40. math.FA 2026-04-24 reviewed
    Conditions make Gel'fand integrals (q,p)-summing in Banach spaces

    Gel'fand Integration of B(E, F*)-Valued Functions With Emphasis on (q, p)-Summing Operators

    Matija Milovi\'c +1

  41. math.FA 2026-04-24 reviewed
    Adding acyclic monotone operators can destroy acyclicity

    Acyclic Monotone Operators Are Not Closed Under Addition

    Henry Shugart

  42. math.FA 2026-04-24 reviewed
    Kadison infima hold for countable weak-operator compact operator sets

    Remarks on infimum and maximal lower bounds of a set of bounded self-adjoint operators

    Matthias G\"unther +1

  43. math.FA 2026-04-24 reviewed
    Equivalent measures extend commutator Schatten norms to irregular spaces

    $A_\infty$-invariance of oscillatory norms, and Schatten characterisations of commutators

    Tuomas Hyt\"onen

  44. math.FA 2026-04-24 reviewed
    Regularized winding number gives spectral flow for Id+Schatten unitaries

    Analytic spectral flow formula for unitaries and Levinson's theorem

    A. Alexander +3

  45. math.GR 2026-04-24 reviewed
    Free groups are uniformly amenable at infinity

    Uniform amenability at infinity

    Narutaka Ozawa

  46. math.FA 2026-04-24 reviewed
    Sum of two Toeplitz operators is hyponormal under explicit symbol conditions

    Hyponormality of the sum of two Toeplitz operators

    Anuradha Gupta +1

  47. math.FA 2026-04-24 reviewed
    Explicit formulas derived for invariants of (z-w)^2 submodule

    On numerical invariants for submodules $[(z-w)^2]$ in $H^2(\mathbb{D}^2)$

    Yin Liu +2

  48. math.FA 2026-04-24 reviewed
    Inner projection products compact on bidisc only if finite rank

    Compactness of products and commutators of inner projections

    Peiran Zhang +4

  49. math.FA 2026-04-24 reviewed
    Complex representer theorem recovers superoscillations in Fock space

    Representer Theorem in Complex Reproducing Kernel Hilbert Spaces with Applications to Fock and Hardy Spaces and Superoscillations

    Natanael Alpay +2

  50. math-ph 2026-04-23 reviewed
    KMS decay rate is bounded below by GNS rate for quantum Markov semigroups

    The KMS and GNS Spectral Gap of Quantum Markov Semigroups

    Melchior Wirth