نتایج جستجو برای: contractions

تعداد نتایج: 23024  

Journal: :Journal of Inequalities and Applications 2021

Abstract In this paper, we introduce the notions of proximal Berinde g -cyclic contractions two non-self-mappings and -contractions, called contraction first second kind. Coincidence best proximity point theorems for these types mappings in a metric space are presented. Some examples illustrating our main results also given. Our extend generalize many existing literature.

In this manuscript, we consider the interpolative contractions mappings via simulation func-tions in the setting of complete metric space. We also express an illustrative example to show the validity of our presented results.

Journal: :Advances in Mathematics 2023

A unitarily invariant, complete Nevanlinna–Pick kernel K on the unit ball determines a class of operators Hilbert space called K-contractions. We study those K-contractions that are constrained, in sense they annihilated by an ideal multipliers. Our overarching goal is to identify various joint spectra these constrained through vanishing locus their annihilators. methods based around careful an...

Journal: :Indian journal of experimental biology 2002
F B H Gurib A H Subratty

Effect of genistein, a protein tyrosine kinase inhibitor, on TAME-esterase induced contractions were studied on rat aorta strips in vitro. Data showed that TAME-esterase induced contractions were concentration dependent and these contractions were significantly inhibited when rat aorta strips were pre-incubated with genistein. The present findings provide evidence for the possible contribution ...

2015
Edgar Solomonik James Demmel Torsten Hoefler

Contractions of nonsymmetric tensors are reducible to matrix multiplication, however, ‘fully symmetric contractions’ in which the tensors are symmetric and the result is symmetrized can be done with fewer operations. The ‘direct evaluation algorithm’ for fully symmetric contractions exploits equivalence between terms in the contraction equation to obtain a lower computation cost than the cost a...

Several reports have shown the various effects of grape (Vitis vinifera) seed extract such as antioxidant, hypotensive, hypolipidemic and vasodilatory effects. The aim of present study was to investigate the effect of grape leaf hydroalcoholic extract on isolated rat tracheal contractions induced by KCl and acetylcholine. The trachea was removed from male adult Sprague-Dawley rat and placed in ...

Moini A

Embryo transfer (ET) is the final and most crucial step of the IVF procedure, characterized by a close collaboration between the clinician and the embryologist. Several studies have shown improvement in clinical pregnancy rates resulting from a focus on different aspects of the gentle embryo transfer technique. Issues such as impact of physician’s experience, trial transfer, catheter type, embr...

Journal: :Advances in Difference Equations 2021

Abstract The main purpose of this paper is to present some fixed-point results for a pair fuzzy dominated mappings which are generalized V -contractions in modular-like metric spaces. Some theorems using partial order discussed and also useful graphic contractions fuzzy-graph developed. To explain the validity our results, 2D 3D graphs have been constructed. Also, applications provided show nov...

2006
Marcelo A. Falappa Eduardo L. Fermé Gabriele Kern-Isberner

This work elaborates on the connection between partial meet contractions and kernel contractions in belief change theory. We present a way to define incision functions (used in kernel contractions) from selection functions (used in partial meet contractions) and vice versa. Then we make precise under which conditions there are exact correspondences between selection and incision functions so th...

1994
Marc de Montigny

ABSTRACT. We introduce a new construction of bilinear invariant forms on Lie algebras, based on the method of graded contractions. The general method is described and the Z2-, Z3-, and Z2 ⊗ Z2-contractions are found. The results can be applied to all Lie algebras and superalgebras (finite or infinite dimensional) which admit the chosen gradings. We consider some examples: contractions of the Ki...

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