Results 11 to 20 of about 250 (186)

Quantitative Hahn-Banach Theorems and Isometric Extensions forWavelet and Other Banach Spaces [PDF]

open access: yesAxioms, 2013
We introduce and study Clarkson, Dol’nikov-Pichugov, Jacobi and mutual diameter constants reflecting the geometry of a Banach space and Clarkson, Jacobi and Pichugov classes of Banach spaces and their relations with James, self-Jung, Kottman and Schäffer
Sergey Ajiev
doaj   +2 more sources

Phelps type duality results in best approximation [PDF]

open access: yesJournal of Numerical Analysis and Approximation Theory, 2002
The aim of the present paper is to show that many Phelps type duality result, relating the extension properties of various classes of functions (continuous, linear continuous, bounded bilinear, Hölder-Lipschitz) with the approximation properties ...
Ştefan Cobzaş
doaj   +4 more sources

Exotic cyclic cohomology classes and Lipschitz algebras [PDF]

open access: yes, 2023
We study the noncommutative geometry of algebras of Lipschitz continuous and Hölder continuous functions, where nonclassical and novel differential geometric invariants arise.
Goffeng, Magnus,   +2 more
core   +3 more sources

An approach to elliptic equations with nonlinear gradient terms via a modulation framework

open access: yesBulletin of Mathematical Sciences, 2023
We consider a class of nonhomogeneous elliptic equations with fractional Laplacian and nonlinear gradient terms, namely [Formula: see text] in [Formula: see text], where [Formula: see text], [Formula: see text] is the nonlinearity, [Formula: see text ...
Lucas C. F. Ferreira, Wender S. Lagoin
doaj   +1 more source

Generalized Differentiability of Continuous Functions

open access: yesFractal and Fractional, 2020
Many physical phenomena give rise to mathematical models in terms of fractal, non-differentiable functions. The paper introduces a broad generalization of the derivative in terms of the maximal modulus of continuity of the primitive function.
Dimiter Prodanov
doaj   +1 more source

Titchmarsh theorems for Fourier transforms of Hölder-Lipschitz functions on compact homogeneous manifolds [PDF]

open access: yes, 2018
In this paper we extend classical Titchmarsh theorems on the Fourier transform of Hölder–Lipschitz functions to the setting of compact homogeneous manifolds.
DELGADO VALENCIA, JC   +5 more
core   +1 more source

Normal Families and Quasiregular Mappings [PDF]

open access: yes, 2023
Beardon and Minda gave a characterization of normal families of holomorphic and meromorphic functions in terms of a locally uniform Lipschitz condition.
Alastair N. Fletcher   +3 more
core   +2 more sources

Operator Hölder–Zygmund functions [PDF]

open access: yes, 2010
It is well known that a Lipschitz function on the real line does not have to be operator Lipschitz. We show that the situation changes dramatically if we pass to Hölder classes.
Aleksandrov, A.B., Peller, V.V.
core   +1 more source

Aspects of Hadamard well-posedness for classes of non-Lipschitz semilinear parabolic partial differential equations [PDF]

open access: yes, 2016
We study classical solutions of the Cauchy problem for a class of non-Lipschitz semilinear parabolic partial differential equations in one spatial dimension with sufficiently smooth initial data.
Needham, D. J., Meyer, J. C.
core   +1 more source

Lipschitz spaces adapted to Schrödinger operators and regularity properties [PDF]

open access: yes, 2021
Consider the Schrödinger operator L= - Δ + V in Rn, n≥ 3 , where V is a nonnegative potential satisfying a reverse Hölder condition of the type (1|B|∫BV(y)qdy)1/q ≤C|B|∫BV(y)dy, for some q > n/2.
Torrea Hernández, José Luis   +1 more
core   +1 more source

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