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775 papers in math.FA · page 12
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Homotopic *-homomorphisms lift together to asymptotic homomorphisms
Homotopy lifting, asymptotic homomorphisms, and traces
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Surjective maps between C*-algebras gain norm-exactly-1 continuous sections
Sections and cones
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Multiplier algebra determines CNP Dirichlet kernel up to equivalence
Multiplier varieties and multiplier algebras of CNP Dirichlet series kernels
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Fourier bound on rescaling kernels controls truncated Riesz transforms
On the dimension-free control of higher order truncated Riesz transforms by higher order Riesz transforms
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Large subspaces and algebras fill gaps between convergence modes
Almost uniform vs. pointwise convergence from a linear point of view
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Ergodic theorem links wavelets to Gaussian processes for AP-frames
Affine AP-frames and Stationary Random Processes
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Exponential type functions recovered uniquely from Gabor magnitude samples
On a dense set of functions determined by sampled Gabor magnitude
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Classical parabolicity tests work on discrete graphs
Characterizations of $p$-Parabolicity on Graphs
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Heat equation returns pointwise to initial data in modulation spaces
Pointwise convergence to initial data of heat and Hermite-heat equations in Modulation Spaces
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Submodule-preserving bijective maps on Hilbert modules are central scalars
C*-submodule preserving module mappings on Hilbert C*-modules
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Fractional Leibniz rules hold for Dunkl Laplacian
Dunkl paraproducts and fractional Leibniz rules for the Dunkl Laplacian
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Canonical space classifies all f-algebra products on AM-spaces
$f$-algebra products on AL and AM-spaces
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Ritt operators on L^1 bound generalized square functions
Square Functions and Variational Estimates for Ritt Operators on $L^1$
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Spectral Barron spaces embed continuously into Hölder spaces
Functional analysis and partial differential equations in spectral Barron spaces
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Geometric construction yields smallest measure satisfying area formula
Inductive Volume Measure: A Geometric Alternative to Hausdorff Measure
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Sharper upper bound on amenability constants of Fourier algebras
On amenability constants of Fourier algebras: new bounds and new examples
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Symmetry lemma gives new proof that 2x2 numerical range is 2-spectral set
A Schwarz-Jack lemma, circularly symmetric domains and numerical ranges
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Degenerate Laplacians obey HLS inequalities under A2 weights
On Hardy-Littlewood-Sobolev estimates for degenerate Laplacians
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Two solutions for mixed local-nonlocal variable exponent problem
Multiplicity results for mixed local-nonlocal variable exponent problem involving singular and superlinear term
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Real nc convex sets get their own theory with new complexification
Real Non-Commutative Convexity I
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New modulus sharpens error estimates for linear approximators
Semi-discrete moduli of smoothness and their applications in one- and two- sided error estimates
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Li-Yorke chaos of module shifts equals weight-operator chaos
Disjoint F-semi-transitivity in Banach algebras
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The paper characterizes disjoint F-semi-transitivity for adjoints of weighted composition…
Disjoint F-semi-transitivity in Banach algebras
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Schur multiplier norm equals min ||diag(P)|| over -P ≤ X ≤ P
The Schur multiplier norm and its dual norm
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Explicit formulas classify bifurcations of limit cycles in DDEs
Numerical Periodic Normalization at Codim 1 Bifurcations of Limit Cycles in DDEs
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Point-process sums converge to Gaussian with explicit error bound
Central limit theorem for the determinantal point process with the confluent hypergeometric kernel
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Every probabilistic frame has a finite discrete approximate dual
Approximately Dual and Pseudo-Dual Probabilistic Frames
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Closed sums inherit approximation properties from (GC) subspaces
Transfer of Approximation properties under Local Constraints and Best Simultaneous Approximation on Sums
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Right-hand derivative of B(H,K) norm derived for unequal spaces
Subdifferential of the $\mathcal{B(H,K)}$ norm, and approximate orthogonality
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Criteria on L^p spaces decide joint calculus for Ritt_E pairs
$H^\infty$ Functional Calculus for a Commuting Pair of $\text{Ritt}_{\text{E}}$ Operators
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Shifted wave kernels decay polynomially on symmetric spaces
Shifted wave equation on noncompact symmetric spaces
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Bruno conditions suffice for positive-measure invariant tori
Fixed point theorems for small divisors problems
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Measure on (0,1) fixes boundedness of generalized Hilbert operators
Generalized Hilbert matrix operators acting on weighted sequence spaces
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Sign-symmetric norms yield explicit dual formulas
Primal and dual characterizations of sign-symmetric norms
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Regularized SGD learns operators with dimension-free rates
Learning Operators by Regularized Stochastic Gradient Descent with Operator-valued Kernels
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Irreducible operators dense in trace-class norm for many bounded operators
Density of irreducible operators in the trace-class norm
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Sobolev norms recovered via non-local asymptotics without doubling
A new characterization of Sobolev spaces on Lipschitz differentiability spaces
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Bounded-degree trees embed in any normed space of dimension 64 log N / log log N
A universal threshold for geometric embeddings of trees
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Unitary transform equates hypergeometric kernel to Wiener-Hopf operator
Unitary transform diagonalizing the Confluent Hypergeometric kernel
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Super ADP sits strictly between Daugavet and alternative Daugavet
The super Alternative Daugavet property for Banach spaces
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Non-reflexive spaces allow norms separating exposure and rotundity
Some remarks on almost locally uniformly rotund points
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Algebra condition equates energy BV to standard metric BV
Functions of bounded variation and Lipschitz algebras in metric measure spaces
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Twisted C*-algebras of nilpotent groups are Z-stable iff nowhere scattered
Z-stability of twisted group C*-algebras of nilpotent groups
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Fractional currents equal snowflaked metric currents
Fractional currents and Young geometric integration
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Fundamental solution bounds equivalent to Moser estimates
Degenerate parabolic equations in divergence form: fundamental solution and Gaussian bounds
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Klain-Schneider theorem classifies vector valuations on convex functions
A Klain-Schneider Theorem for Vector-Valued Valuations on Convex Functions
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Arc-smooth maps on closed sets are bornologically isomorphic to smooth ones
On spaces of arc-smooth maps
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Lévy OU operators gain explicit eigenfunction formulas via intertwining
Spectral theory of non-local Ornstein-Uhlenbeck operators
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Canonical p-energy measures built without self-similarity
Construction of $p$-energy measures associated with strongly local $p$-energy forms
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Sparse ratios approaching 1 still generate L^p(R) translates
Completeness of sparse, almost integer and finite local complexity sequences of translates in $L^p(\mathbb{R})$