Results 11 to 20 of about 627,202 (87)

The Theory of Reich's Fixed Point Theorem for Multivalued Operators

open access: yesFixed Point Theory and Applications, 2010
The purpose of this paper is to present a theory of Reich's fixed point theorem for multivalued operators in terms of fixed points, strict fixed points, multivalued weakly Picard operators, multivalued Picard operators, data dependence of the fixed ...
Moţ Ghiocel   +3 more
doaj   +1 more source

Fixed points for multivalued contractions on a metric space [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
The purpose of this paper is to prove a fixed point theorem for multivalued operators and a fixed point theorem for multivalued weakly Picard operators in the terms of τ -distance.
Liliana Guran
doaj   +3 more sources

Fixed point theory for multivalued φ-contractions

open access: yesFixed Point Theory and Applications, 2011
The purpose of this paper is to present a fixed point theory for multivalued φ-contractions using the following concepts: fixed points, strict fixed points, periodic points, strict periodic points, multivalued Picard and weakly Picard operators ...
Lazăr Vasile
doaj   +1 more source

Heights on curves and limits of Hodge structures

open access: yesJournal of the London Mathematical Society, Volume 108, Issue 1, Page 340-361, July 2023., 2023
Abstract We exhibit a precise connection between Néron–Tate heights on smooth curves and biextension heights of limit mixed Hodge structures associated to smoothing deformations of singular quotient curves. Our approach suggests a new way to compute Beilinson–Bloch heights in higher dimensions.
Spencer Bloch   +2 more
wiley   +1 more source

Towards hybrid two‐phase modelling using linear domain decomposition

open access: yesNumerical Methods for Partial Differential Equations, Volume 39, Issue 1, Page 622-656, January 2023., 2023
Abstract The viscous flow of two immiscible fluids in a porous medium on the Darcy scale is governed by a system of nonlinear parabolic equations. If infinite mobility of one phase can be assumed (e.g., in soil layers in contact with the atmosphere) the system can be substituted by the scalar Richards model.
David Seus   +2 more
wiley   +1 more source

Resurgence analysis of quantum invariants of Seifert fibered homology spheres

open access: yesJournal of the London Mathematical Society, Volume 105, Issue 2, Page 709-764, March 2022., 2022
Abstract For a Seifert fibered homology sphere X$X$, we show that the q$q$‐series invariant Ẑ0(X;q)$\hat{\operatorname{Z}}_0(X;q)$, introduced by Gukov–Pei–Putrov–Vafa, is a resummation of the Ohtsuki series Z0(X)$\operatorname{Z}_0(X)$. We show that for every even k∈N$k \in \mathbb {N}$ there exists a full asymptotic expansion of Ẑ0(X;q)$ \hat ...
Jørgen Ellegaard Andersen   +1 more
wiley   +1 more source

Study of Metric Space and Its Variants

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
The objective of this paper is to present a comparative study of metric space and its variants. This study will provide the structure, gap analysis, and application of metric space and its variants from 1906 to 2021.
Surjeet Singh Chauhan (Gonder)   +3 more
wiley   +1 more source

Diametrically Contractive Multivalued Mappings [PDF]

open access: yes, 2007
Diametrically contractive mappings on a complete metric space are introduced by V. I. Istratescu. We extend and generalize this idea to multivalued mappings. An easy example shows that our fixed point theorem is more applicable than a former one obtained
H. Yingtaweesittikul   +5 more
core   +2 more sources

On multivalued weakly Picard operators in partial Hausdorff metric spaces [PDF]

open access: yes, 2015
We discuss multivalued weakly Picard operators on partial Hausdorff metric spaces. First, we obtain Kikkawa-Suzuki type fixed point theorems for a new type of generalized contractive conditions.
Hemant Kumar Nashine   +7 more
core   +1 more source

Semiclosed multivalued projections [PDF]

open access: yes, 2023
A multivalued projection is an idempotent linear relation with invariant domain. We characterize multivalued projections that are operator ranges (called semiclosed) and provide several formulae of them.
Marcantognini, Stefania   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy