Results 11 to 20 of about 41 (38)

Schramm spaces and composition operators [PDF]

open access: yes, 2023
We give some properties of Schramm functions; among others, we prove that the family of all continuous piecewise linear functions defined on a real interval I is contained in the space ΦBV (I) of functions of bounded variation in the sense of Schramm ...
Wróbel, Małgorzata
core   +1 more source

Operators with memory in Schramm spaces [PDF]

open access: yes, 2023
We show that every operator with memory acting between Banach spaces CΦBV(I) of continuous functions of bounded variation in the sense of Schramm defined on a compact interval I of a real axis, is a Nemytskij composition operator with the continuous ...
Wróbel, Małgorzata   +1 more
core   +1 more source

Uniformly bounded Nemytskij operators acting between the Banach spaces of generalized Hölder functions [PDF]

open access: yes, 2017
We investigate the Nemytskij (composition, superposition) operators acting between Banach spaces of r -times differentiable functions defined on the closed intervals of the real line with the r-derivatives satisfying a generalized Hölder condition.
Maria Lupa   +3 more
core   +1 more source

A real analyticity result for a nonlinear integral operator [PDF]

open access: yes, 2013
International audienceWe consider a nonlinear integral operator which involves a Nemytskij type operator and which appears in the applications as a pull-back of layer potential operators. We prove an analyticity result in Schauder spaces by splitting the
P. Musolino   +6 more
core   +1 more source

Uniformly bounded set-valued composition operators in the spaces of functions of bounded variation in the sense of Wiener [PDF]

open access: yes, 2015
We show that the one-sided regularizations of the generator of any uniformly bounded set-valued Nemytskij composition operator mapping the space of bounded variation functions in the sense of Wiener into the space of bounded variation functions with ...
Matkowski, J.   +3 more
core   +1 more source

Uniformly continuous set-valued composition operators in the space of total phi-bidimensional variation in the sense of Riesz [PDF]

open access: yes, 2010
In this paper we prove that if a Nemytskij composition operator, generated by a function of three variables in which the third variable is a function one, maps a suitable large subset of the space of functions of bounded total φ-bidimensional ...
Merentes, N.   +3 more
core  

MR3058477 Reviewed Ereú, Thomás; Sánchez, José L.; Merentes, Nelson; Wróbel, Małgorzata Uniformly continuous set-valued composition operators in the spaces of functions of bounded variation in the sense of Schramm. Pr. Nauk. Akad. Jana Długosza Częst. Mat. 16 (2011), 23–32. ISBN: 978-83-7455-209-7 [PDF]

open access: yes, 2011
In this paper it is established a property of a composition operator between spaces of functions of bounded variation in the sense of Schramm. Let X and Y be two real normed spaces, C a convex cone in X and I a closed bounded interval of the real
DI PIAZZA, Luisa
core  

Uniformly continuous set-valued composition operators in the spaces of functions of bounded variation in the sense of Schramm [PDF]

open access: yes, 2011
We show that the one-sided regularizations of the generator of any uniformly continuous set-valued Nemytskij operator, acting between the spaces of functions of bounded variation in the sense of Schramm, is an affine function.
Sánchez, J. L.   +3 more
core  

Opuscula Mathematica [PDF]

open access: yes, 2010
In this paper we prove that if a Nemytskij composition operator, generated by a function of three variables in which the third variable is a function one, maps a suitable large subset of the space of functions of bounded total φ-bidimensional variation ...
Sánchez, José Luis   +3 more
core  

Uniformly continuous set-valued composition operators in the space of total phi-bidimensional variation in the sense of Riesz [PDF]

open access: yes
Tyt. z nagłówka.Pozostali autorzy art.: José Giménez, Nelson Merentes, Jose Luis Sánchez.Bibliogr. s. 247-248.Dostępny również w formie drukowanej.ABSTRACT: In this paper we prove that if a Nemytskij composition operator, generated by a function of three

core  

Home - About - Disclaimer - Privacy