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775 papers in math.FA · page 5
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Selective projection pattern yields generalized quantum Ramsey theorem
A generalized infinite quantum Ramsey theorem for operator systems
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Maximal algebras of Schur block Toeplitz matrices fully classified
Maximal Algebras of Block Toeplitz Matrices with Entries in the Schur Algebra
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Small Hankel operators in Schatten classes yield product BMO symbols
Recovering Product BMO from Schatten Hankel operators
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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
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Darboux and Riemann integrals coincide on Dedekind complete f-algebras
The Riemann integral on Dedekind complete $f$-algebras
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Norm-additive bijections on C0 positive cones are weighted compositions
Norm additive mappings between the positive cones of continuous function algebras
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Triopoly equilibrium exists and is unique via coupled fixed points
Equilibrium in the Canonical Stackelberg Triopoly via Response Functions and Fixed Point Theory
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Chagas dispersal operator generates analytic semigroup
Analytic semigroup generated by the dispersal process of a sylvatic transmission model of Chagas disease
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ℓ^p-pseudofunctions yield isomorphic crossed product algebras for any representation
Crossed product functors associated to $\ell^p$-pseudofunctions
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Small-norm vectors lie close to kernel for onto operators with located kernels
Closing in on the kernel of an operator between Banach spaces
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Weak greedy algorithms converge on dictionary octahedrons
On weak greedy algorithms
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The paper proves that non-stable pure subnormal contractions on Hilbert spaces have…
Non-stable subnormal contractions have nontrivial hyperinvariant subspaces
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Quantum channels archive normal states into singular measures
Quantum channels preserving sigma-additivity and Ulam measurable cardinals
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Quantum channels map normal states to singular sigma-additive states
Quantum channels preserving sigma-additivity and Ulam measurable cardinals
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Krylov solvability in Banach spaces blocked by missing complements
Some results on Krylov solvability in Banach space and connections to spectral theory
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Resolvent holomorphy links Krylov solvability in Banach spaces
Some results on Krylov solvability in Banach space and connections to spectral theory
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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
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Spherical maximal functions reach weak type at L^p-L^q boundary
Boundary estimates for the fractional spherical maximal function
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Relative property (T) forces invariant trace simplices to be Bauer
Invariant trace simplices and relative property (T)
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Partial extended b-metric spaces unify prior generalizations
Partial extended b-metric and some fixed point theorem
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Non-complete Daugavet space has fully smooth norm
About smooth and non-poor subspaces of Daugavet spaces
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Polynomial local functionals on convex functions admit finite integral forms
Integral representation of polynomial local functionals on convex functions
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Orbit space topology equals irreducible representation spectrum of uniform Roe algebra
Dynamics in large scale geometry
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Lower bound on one semigroup operator yields bounded H infinity calculus
$H^\infty$--functional calculus for generators of semigroups that admit lower bounds
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Bourgain's K-closedness method extends to semicommutative setting
Bourgain's method for K-closedness in the semicommmutative setting
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Banach-compact operators are those with A-precompact unit ball images
Banach-compact operators, $\mathcal A$-precompactness, and frames in Hilbert $C^*$-modules
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One non-affine edge function makes deep KANs universal
Necessary and sufficient conditions for universality of Kolmogorov-Arnold networks
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One non-affine function makes deep KANs universal on compacts
Necessary and sufficient conditions for universality of Kolmogorov-Arnold networks
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Problem on one-sided positive Banach-Mazur distance solved
On positive Banach-Mazur distance
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Extension domains are exactly the Ahlfors-regular sets obeying a BBM inequality near s=1
How to Recognise Extension domains
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Fourier algebra preduals admit conditional-expectation skeletons
Projectional Skeletons of Fourier Algebras
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3-Brownian shift extends classical version to bidisk space
Invariant Subspaces and the $C_{00}$-Property of $3$-Brownian Shifts
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T-extended weakly contractive maps coincide with Geraghty maps
T Extended Weakly Contractive, Kannan, and Geraghty Mappings Fixed Points, Equivalences,
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Two norms on nonassociative L^p spaces agree in scale but not shape
Spectral versus interpolation norms in tracial nonassociative $\mathrm{L}^p$-spaces
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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
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Matrix operators yield noncomplemented subspaces on the torus
Nonexistence of Henkin type projections via a Wiener theorem for multipliers
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Real interpolation preserves Bourgain-Brezis divergence equality
Bourgain-Brezis spaces obtained by real interpolation
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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
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Hahn-Banach theorem derives entropy and temperature from second law
How the Hahn-Banach Theorem Sheds Bright Light on Fundamental Questions in Classical Thermodynamics
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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
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Adding acyclic monotone operators can destroy acyclicity
Acyclic Monotone Operators Are Not Closed Under Addition
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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
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Equivalent measures extend commutator Schatten norms to irregular spaces
$A_\infty$-invariance of oscillatory norms, and Schatten characterisations of commutators
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Regularized winding number gives spectral flow for Id+Schatten unitaries
Analytic spectral flow formula for unitaries and Levinson's theorem
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Free groups are uniformly amenable at infinity
Uniform amenability at infinity
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Sum of two Toeplitz operators is hyponormal under explicit symbol conditions
Hyponormality of the sum of two Toeplitz operators
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Explicit formulas derived for invariants of (z-w)^2 submodule
On numerical invariants for submodules $[(z-w)^2]$ in $H^2(\mathbb{D}^2)$
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Inner projection products compact on bidisc only if finite rank
Compactness of products and commutators of inner projections
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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
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KMS decay rate is bounded below by GNS rate for quantum Markov semigroups
The KMS and GNS Spectral Gap of Quantum Markov Semigroups