Results 1 to 10 of about 281 (199)

Frechet vs. Gateaux Differentiability of Lipschitzian Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1992
Examples have been given of Lipschitzian functions that are Gâteaux-differentiable everywhere, but nowhere Fréchet-differentiable. One such example has been reported, mistakenly, in several papers as having domain in
Gieraltowska-Kedzierska, Maria   +1 more
openaire   +2 more sources

New Stability Results for Periodic Solutions of Generalized Van der Pol Oscillator via Second Bogolyubov’s Theorem

open access: yesMathematics, 2023
A certain class of nonlinear differential equations representing a generalized Van der Pol oscillator is proposed in which we study the behavior of the existing solution.
Safia Meftah   +6 more
doaj   +1 more source

On Estimation of the Bullen-Mercer Inequality for Several Classes [PDF]

open access: yesSahand Communications in Mathematical Analysis
This study establishes Bullen-Mercer type inequalities for $h$-convex functions that use Riemann-Liouville fractional operators.  The subject matter is a novel fractional version of the existing Bullen-Mercer type inequalities, with simple computations ...
Ahmed Hallouz   +2 more
doaj   +1 more source

Smooth Extensions of Lipschitzian Real Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
In this short note we point out that any Lipschitzian real function f f defined in a subset K K of a Banach space E E , with span ¯ (K) ≠ E \overline {{\text {span}}} {\text {(K ...
openaire   +3 more sources

On Fréchet differentiability of Lipschitzian functions on spaces with gaussian measures [PDF]

open access: yesDoklady Mathematics, 2007
There is a Borel function \(f\) on \({\mathbb R}^{\infty}\) that is Lipschitz with constant~1 along the Cameron-Martin space such that the set of points of Fréchet differentiablity along \(H\) for \(f\) has \(\gamma\)-measure zero, where \(\gamma\) is the standard Gaussian product measure on~\({\mathbb R}^{\infty}\).
V. Bogachev, E. Priola, N. A. Tolmachev
openaire   +1 more source

Generic differentiability of Lipschitzian functions [PDF]

open access: yesTransactions of the American Mathematical Society, 1979
It is shown that, in separable topological vector spaces which are Baire spaces, the usual properties that have been introduced to study the local “first order” behaviour of real-valued functions which satisfy a Lipschitz type condition are “generically” equivalent and thus lead to a unique class of “generically smooth” functions.
openaire   +1 more source

Iterative Algorithms for Variational Inequalities Governed by Boundedly Lipschitzian and Strongly Monotone Operators

open access: yesJournal of Applied Mathematics, 2015
Consider the variational inequality VI(C,F) of finding a point x*∈C satisfying the property 〈Fx*,x-x*〉≥0 for all x∈C, where C is a level set of a convex function defined on a real Hilbert space H and F:H→H is a boundedly Lipschitzian (i.e., Lipschitzian ...
Caiping Yang, Songnian He
doaj   +1 more source

A Projection Hestenes–Stiefel Method with Spectral Parameter for Nonlinear Monotone Equations and Signal Processing

open access: yesMathematical and Computational Applications, 2020
A number of practical problems in science and engineering can be converted into a system of nonlinear equations and therefore, it is imperative to develop efficient methods for solving such equations.
Aliyu Muhammed Awwal   +4 more
doaj   +1 more source

Subdifferentials of compactly lipschitzian vector-valued functions [PDF]

open access: yesAnnali di Matematica Pura ed Applicata, 1980
We introduce the concept of compactly lipschitzian functions taking values in a topological vector space F. We show that if F is finite dimensional the Lipschitz functions are compactly lipschitizian. We define the notions of generalized directional derivatives and subdifferentials for such functionsf taking values in an ordered topological vector ...
openaire   +2 more sources

On the Nemytskii Operator in the Space of Functions of Bounded (p, 2, α)-Variation with Respect to the Weight Function

open access: yesDemonstratio Mathematica, 2014
In this paper, we consider the Nemytskii operator (Hf)(t) = h(t, f(t)), generated by a given function h. It is shown that if H is globally Lipschitzian and maps the space of functions of bounded (p,2,α)-variation (with respect to a weight function α ...
Aziz Wadie
doaj   +1 more source

Home - About - Disclaimer - Privacy