نتایج جستجو برای: m contraction admitting center map

تعداد نتایج: 1028898  

‎In this work‎, ‎we investigate admitting center map on multiplicative metric space‎ ‎and establish some fixed point theorems for such maps‎. ‎We modify the Banach contraction principle and‎ ‎the Caristi's fixed point theorem for M-contraction admitting center maps and we prove some‎ ‎useful theorems‎. ‎Our results on multiplicative metric space improve and modify‎ ‎s...

In this work we investigate a class of admitting center maps on a metric space. We state and prove some fixed point and best proximity point theorems for them. We obtain some results and relevant examples. In particular, we show that if $X$ is a reflexive Banach space with the Opial condition and $T:Crightarrow X$ is a continuous admiting center map, then $T$ has a fixed point in $X.$ Also, we ...

Journal: :Journal of Geometric Analysis 2010

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم ریاضی و مهندسی کامپیوتر 1392

هدف از این پایان نامه تعمیم قضایای بوهلر (1969)، هید (1971) و هید - براون (1971) در یک فرایند شاخه ای با محیط تصادفی است. برای فرایند شاخه ای $ lbrace z_{n} brace _ {ngeq0 } $ ، با فرض $ z_{0}=1 $ و $ m= e(z_{1}) in (0,infty) $، می دانیم $ w_{n}=z_{n}/m^{n} $ یک مارتینگل نامنفی و تقریبا مطمئن به متغیر تصادفی $ w_{infty} $ همگراست. برای نرخ همگرایی این مارتینگل، هید و بوهلر به ترتیب نتیجه گرف...

Journal: :bulletin of the iranian mathematical society 2014
ö. acar g. durmaz g minak

in the present paper‎, ‎we introduce the concept of generalized multivalued $f$ -‎contraction mappings and give a fixed point result‎, ‎which is a proper‎ ‎generalization of some multivalued fixed point theorems including nadler's‎.

Journal: :Operator theory 2021

For a large class of unitarily invariant reproducing kernel functions K on the unit ball \(\mathbb B_d\) in C^d\), we characterize K-inner as admitting suitable transfer function realization. We associate with each K-contraction T ∈ L(H)d canonical operator-valued and extend uniqueness theorem Arveson for minimal K-dilations to our setting. thus generalize results Olofsson m-hypercontractions d...

2008
Tomohiro Kawakami

zw Let G be a finite abelian group and M an o-minimal expansion of Rexp = (R, +, ·, <, e) admitting the C∞ cell decomposition. Everything is considered in M. We prove that every definable C∞G manifold is affine. Moreover we prove that if X1, . . . , Xn (resp. Y1, . . . , Yn) are definable C ∞G submanifolds of a definable C∞G manifold X (resp. Y ) in general position, then every definable CG map...

Journal: :Int. J. Math. Mathematical Sciences 2005
Ion Mihai Radu Rosca Valentin Ghisoiu

We deal with a locally conformal cosymplectic manifoldM(φ,Ω,ξ,η,g) admitting a conformal contact quasi-torse-forming vector field T . The presymplectic 2-form Ω is a locally conformal cosymplectic 2-form. It is shown that T is a 3-exterior concurrent vector field. Infinitesimal transformations of the Lie algebra of ∧M are investigated. The Gauss map of the hypersurfaceMξ normal to ξ is conforma...

2018
Zhi-Feng Lou Peng-Fei Xue Yuan-Song Zheng Kuang-Chao Fan

In gear measuring machines (GMMs), the tested gear is mounted on a mandrel, which is pivoted at both ends by two centers in a vertical arrangement. The upper center is fixed and the lower center is driven by the spindle of rotation. The coaxiality error between the central line of the mandrel and the spindle average line of a GMM always exists in terms of the offset and angle measured in one pl...

Journal: :American journal of physiology. Cell physiology 2000
J C Hedges B C Oxhorn M Carty L P Adam I A Yamboliev W T Gerthoffer

Phosphorylation of h-caldesmon has been proposed to regulate airway smooth muscle contraction. Both extracellular signal-regulated kinase (ERK) and p38 mitogen-activated protein (MAP) kinases phosphorylate h-caldesmon in vitro. To determine whether both enzymes phosphorylate caldesmon in vivo, phosphorylation-site-selective antibodies were used to assay phosphorylation of MAP kinase consensus s...

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