نتایج جستجو برای: holditch theorem

تعداد نتایج: 144107  

Journal: :bulletin of the iranian mathematical society 2011
a. rahimzadeh sani

Journal: :iranian journal of fuzzy systems 2015
s. m. vaezpour s. vaezzadeh

in this paper, a concept of generalized weakly contraction mappings in partially ordered fuzzy metric spaces is introduced and  coincidence point  theorems on partially ordered fuzzy metric spaces are proved. also, as the corollary of these theorems, some common fixed point theorems on partially ordered fuzzy metric spaces are presented.

B. M. Uzzal Afsan

The main purpose of this paper is to establish different types of convergence theorems for fuzzy Henstock integrable functions, introduced by  Wu and Gong cite{wu:hiff}. In fact, we have proved fuzzy uniform convergence theorem, convergence theorem for fuzzy uniform Henstock integrable functions and fuzzy monotone convergence theorem. Finally, a necessary and sufficient condition under which th...

In this paper, a fuzzy version of the analytic form of Hahn-Banachextension theorem is given. As application, the Hahn-Banach theorem for$r$-fuzzy bounded linear functionals on $r$-fuzzy normedlinear spaces is obtained.

Journal: :international journal of group theory 0
azam kaheni department of pure mathematics, ferdowsi university of mashhad, p. o. box 1159-91775, mashhad, iran rasoul hatamian department of pure mathematics, ferdowsi university of mashhad, p. o. box 1159-91775, mashhad, iran saeed kayvanfar department of pure mathematics, ferdowsi university of mashhad, p. o. box 1159-91775, mashhad, iran

a famous theorem of schur states that for a group $g$ finiteness of $g/z(g)$‎ ‎implies the finiteness of $g'.$ the converse of schur's theorem is an interesting problem which has been considered by some‎ ‎authors‎. ‎recently‎, ‎podoski and szegedy proved the truth of the converse of schur's theorem for capable groups‎. ‎they also established an explicit bound for the index of the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی مکانیک 1384

در این پایان نامه مساله ی امواج اکوستیکی حاصل از نوسان کره در نیم فضای لزج مورد بررسی قرار می گیرد. معادلات بر اساس تیوری انتشارامواج و addition_ theorem در مختصات کروی برای جابجایی توابع امواج، برای بررسی رفتار منابع برشی و پتانسیل ساده در کنار دیوار صلب در سیال لزج بدست می آیند و حل می شوند. جواب مساله ترکیب خطی از میدان اکوستیکی حاصل از این منابع برشی و پتانسیل ساده در کنار دیوار صلب در سیال...

E. Firouz, S. J. Hosseini Ghoncheh

Boujari [5] proved a fixed point theorem with an old version of the integraltype contraction , his proof is incorrect. In this paper, a new generalizationof integral type contraction is introduced. Moreover, a fixed point theorem isobtained.

In this paper, we introduce the cone normed spaces and cone bounded linear mappings. Among other things, we prove the Baire category theorem and the Banach--Steinhaus theorem in cone normed spaces.

Journal: :journal of linear and topological algebra (jlta) 0
s radenovic faculty of mechanical engineering, university of belgrade, serbia sh sedghi 1department of mathematics, qaemshahr branch, islamic azad university, qaemshahr, iran a gholidahneh 2department of mathematics, qaemshahr branch, islamic azad university, qaemshahr, iran t dosenovic 3faculty of technology, university of novi sad, bulevar cara lazara 1, serbia j esfahani department of mathematics, qaemshahr branch, islamic azad university, qaemshahr, iran

in this paper is introduced a new type of generalization of metric spaces called sb metric space. for this new kind of spaces it has been proved a common xed point theorem for four mappings which satisfy generalized contractive condition. we also present example to con rm our theorem.

Journal: :iranian journal of science and technology (sciences) 2011
s. m. al-harbi

the purpose of this article is to use the classical sampling theorem, wks sampling theorem, to deriveapproximate values of the eigenvalues of the sturm-liouville problems with eigenparameter in the boundaryconditions. error analysis is used to give estimates of the associated error. higher order approximations are also drived, which lead to more complicated computations. we give some examples a...

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