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775 papers in math.FA · page 16
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Classified bilinear products generalize Schoenberg theorem
Noncommutative Schur-type products and their Schoenberg theorem
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Dunford-Schwartz operators extend uniquely to L1 + L∞
Individual ergodic theorems for infinite measure
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Convex functions tighten numerical radius bounds for operators
More accurate numerical radius inequalities (II)
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Fubini theorems proved for strong McShane and Henstock-Kurzweil integrals
Fubini Type Theorems for the strong McShane and strong Henstock-Kurzweil integrals
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Hypergroup discreteness equals non-zero compact multipliers on A(H)
Compact and weakly compact multipliers on Fourier algebras of ultraspherical hypergroups
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Normalized ground states exist for fractional NLS and are blow-up unstable
Normalized ground states for the fractional nonlinear Schr\"{o}dinger equations
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Unique shortest curve in U(n) only when spectrum is two-point symmetric
Minimal curves in U(n) and Gl(n)+ with respect to the spectral and the trace norms
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Block-permuted inductive means converge to matrix least square mean
New deterministic approaches to the least square mean
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Riesz transforms bounded on generalized Morrey space
On boundedness property of singular integral operators associated to a Schr\"odinger operator in a generalized Morrey space and applications
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Explicit formula shows wave operators are order-zero pseudo-differential operators
Schroedinger wave operators on the discrete half-line
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Gamma-bounded semigroups characterized in K-convex spaces
Gamma-boundedness of $C_0$-semigroups and their $H^\infty$-functional calculi
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Variations extend Ando's matrix inequality comparisons
An extension of inequalities by Ando
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Phase-space translations of one window yield mixed states
Generalized Anti-Wick Quantum States
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Spectral order on operator tuples equals product of single orders
Multidimensional spectral order for selfadjoint operators
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2-local isometries are affine when unit balls have many extreme points
On 2-local nonlinear surjective isometries on normed spaces and C$^*$-algebras
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Wave-function to density map partially answers 1983 Lieb question
From wave-functions to single electron densities
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Bilinear operators' norm sets fully described by semi-inner-products
Smoothness and norm attainment of bounded bilinear operators between Banach spaces
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Log-concave perturbations keep spectral gaps logarithmic in dimension
Spectral gaps, symmetries and log-concave perturbations
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Cyclic and noncyclic best proximity points are equivalent via projection
Some remarks on "Convergence of Picard's iteration using projection algorithm for noncyclic contractions" [Indag. Math. 30 (2019) 227--239]
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Compact embeddings let forward rates be approximated by finite-dimensional processes
Compact embeddings for spaces of forward rate curves
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Weaker estimates extend frame continuity to Fréchet spaces
Localization of Fr\'echet frames and expansion of generalized functions
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Open class of linear operators shows infinite-dimensional mixing
Generalized hyperbolicity for linear operators
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Localization operator norm gets asymptotic estimates on Cantor sets
Daubechies' Time-Frequency Localization Operator on Cantor Type Sets
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Dirichlet forms split into recurrent dissipative and transient conservative parts
Decomposition formulae for Dirichlet forms and their corollaries
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Type-2 intervals form a complete metric space
On the space of Type-2 interval with limit, continuity and differentiability of Type-2 interval-valued functions
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Module Cauchy-Schwarz yields Hölder inequalities for operator norms
Operator versions of H\"older inequality and Hilbert $C^*$-modules
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Splitting algorithm solves equilibrium and inclusion problems on manifolds
Splitting Algorithms of Common Solutions Between Equilibrium and Inclusion Problems on Hadamard Manifolds
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Order homotopies give coincidence points in b-metric spaces
A new approach to coincidence and common fixed points under a homotopy of families of mappings in $b$-metric spaces
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Quadratic schemes recover optimal data size for NLS singular perturbations
Size of data in implicit function problems and singular perturbations for nonlinear Schr\"odinger systems
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Statistical convergence defined for nets using directed sets
Statistical convergence of nets through directed sets
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Moment functionals need nearly full count of Gaussians
The multidimensional truncated Moment Problem: Shape and Gaussian Mixture Reconstruction from Derivatives of Moments
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Operator tuples define norms on subalgebras of H^∞
Calcular Algebras
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Gevrey symbols yield continuous bilinear operators on modulation spaces
Bilinear pseudo-differential operators with Gevrey-H\"ormander symbols
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Curvature inequality proves equilibrium convergence without symmetry
Convergence to equilibrium for hypoelliptic non-symmetric Ornstein-Uhlenbeck type operators
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Stieltjes operators bounded on Sobolev-Lebesgue spaces with explicit spectrum
Generalized Stieltjes and other integral operators on Sobolev-Lebesgue spaces
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Bijection maps graph subsets to invariant ideals
The ideal structures of self-similar $k$-graph C*-algebras
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Brezis-Nirenberg result holds for Choquard problem on Heisenberg group
Brezis-Nirenberg type result for Kohn Laplacian with critical Choquard Nonlinearity
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Multilevel Toeplitz matrices symmetrized by tensor product unitaries
A short note on Multilevel Toeplitz Matrices
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Borsuk partition exists exactly when distance to simplex vanishes
Solution to Generalized Borsuk Problem in Terms of the Gromov-Hausdorff Distances to Simplexes
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Rényi relative entropies differ on non-commutative density spaces
Quantum R\'enyi relative entropies on density spaces of $C^*$-algebras: their symmetries and their essential difference
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Fourier transform extends optimally from Orlicz spaces on compact groups
Optimal extension of the Fourier transform and convolution operator on compact groups
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Quantum metrics on M_n separate by positive distance for composite n
Quantum metrics from the trace on full matrix algebras
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Gromov-Hausdorff distances to simplexes apply to all bounded spaces
Gromov--Hausdorff Distance to Simplexes
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Indecomposable nilpotent triples classified for small n_U
On Indecomposable triples associated with nilpotent operators
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One equation forces 2-local maps on B(H) to be *-automorphisms
On 2-local *-automorphisms and 2-local isometries of B(H)
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Micro-transitive isometries force uniform convexity in Banach spaces
On Banach spaces whose group of isometries acts micro-transitively on the unit sphere
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Cauchy-Riemann equations characterize analytic free noncommutative functions
Cauchy-Riemann equations for free noncommutative functions
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Reflexive spaces yield unique Riccati operator solutions
Solvability of an Operator Riccati Integral Equation in a Reflexive Banach Space
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Abstract theorem covers non-self-adjoint Laplace perturbations
Correct Singular Perturbations of the Laplace Operator with the Spectrum of the Unperturbed Operator
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Integral refines numerical radius bounds for operators
More accurate numerical radius inequalities