Results 1 to 10 of about 789 (128)

On the Hausdorff measure of noncompactness for the parameterized Prokhorov metric [PDF]

open access: yesJournal of Inequalities and Applications, 2016
We quantify the Prokhorov theorem by establishing an explicit formula for the Hausdorff measure of noncompactness (HMNC) for the parameterized Prokhorov metric on the set of Borel probability measures on a Polish space.
Ben Berckmoes
doaj   +8 more sources

Geraghty–𝔽-Contraction Type Darbo Fixed-Point Theorems With an Application

open access: yesJournal of Mathematics
In this study, Darbo’s fixed-point theorem is extended by employing Geraghty–𝔽-contractions on Banach spaces. The obtained results are then applied to establish the existence of solutions for a fractional integral equation in the space C0,ς, equipped ...
Samira Hadi Bonab   +4 more
doaj   +2 more sources

A study on q-analogue of generalized Motzkin sequence spaces, their matrix transformations and compact operators. [PDF]

open access: yesPLoS One
In this article, we have constructed generalized q-difference Motzkin sequence spaces [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] by composing q-Motzkin matrix with generalized q-difference matrix in the spaces ...
Quan JJ, Narrania D, Raj K, Cai QB.
europepmc   +2 more sources

Decay mild solutions of the nonlocal Cauchy problem for second order evolution equations with memory [PDF]

open access: yes, 2016
Our aim in this paper is to find out decay mild solutions of the nonlocal Cauchy problem for a class of second order evolution equations with memory. By constructing a suitable measure of noncompactness on the space of solutions, we prove the existence ...
Luong, Vu Trong
core   +17 more sources

Compactness in Groups of Group-Valued Mappings

open access: yesMathematics, 2022
We introduce the concepts of extended equimeasurability and extended uniform quasiboundedness in groups of group-valued mappings endowed with a topology that generalizes the topology of convergence in measure.
Diana Caponetti   +2 more
doaj   +1 more source

Impulsive Fractional Differential Inclusions and Almost Periodic Waves

open access: yesMathematics, 2021
In the present paper, the concept of almost periodic waves is introduced to discontinuous impulsive fractional inclusions involving Caputo fractional derivative.
Gani Stamov, Ivanka Stamova
doaj   +1 more source

Compact matrix operators on a new sequence space related to ℓ p $\ell_{p}$ spaces

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we derive some identities or estimates for the operator norms and the Hausdorff measures of noncompactness of certain matrix operators on the sequence space ℓ p ( r , s , t ; B ( m ) ) $\ell_{p}(r,s,t;B^{(m)})$ which is related to ℓ p ...
Abdullah Alotaibi   +2 more
doaj   +1 more source

Existence of weak solutions to stochastic evolution inclusions [PDF]

open access: yes, 2004
We consider the Cauchy problem for a semilinear stochastic differential inclusion in a Hilbert space. The linear operator generates a strongly continuous semigroup and the nonlinear term is multivalued and satisfies a condition which is more heneral than
De Fitte, Paul Raynaud   +2 more
core   +8 more sources

Generalized quasi-Banach sequence spaces and measures of noncompactness

open access: yesAnais da Academia Brasileira de Ciências, 2013
Given 0 < s ≤ 1 and ψ an s-convex function, s – ψ -sequence spaces are introduced. Several quasi-Banach sequence spaces are thus characterized as a particular case of s – ψ -spaces.
EDUARDO B. SILVA   +2 more
doaj   +1 more source

Existence of mild solutions for impulsive neutral Hilfer fractional evolution equations

open access: yesAdvances in Difference Equations, 2020
In this paper, we investigate the existence of mild solutions for neutral Hilfer fractional evolution equations with noninstantaneous impulsive conditions in a Banach space.
Pallavi Bedi   +3 more
doaj   +1 more source

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