نتایج جستجو برای: ideals of borel type

تعداد نتایج: 21258190  

Journal: :J. Symb. Log. 2008
Su Gao Michael Ray Oliver

See [Oli04]. In [AdKech00], Adams and Kechris showed that the relation of equality on Borel sets (and therefore, any Borel equivalence relation whatsoever) is Borel reducible to the equivalence relation of Borel bireducibility. (In somewhat finer terms, they showed that the partial order of inclusion on Borel sets is Borel reducible to the quasi-order of Borel reducibility.) Their technique was...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده ادبیات و زبانهای خارجی 1390

this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

simplification universal as a universal feature of translation means translated texts tend to use simpler language than original texts in the same language and it can be critically investigated through common concepts: type/token ratio, lexical density, and mean sentence length. although steps have been taken to test this hypothesis in various text types in different linguistic communities, in ...

2016
Winfried Bruns Aldo Conca

Article history: Received 21 March 2017 Received in revised form 3 April 2017 Accepted 19 May 2017 Available online xxxx MSC: 13D15 13F50 14M12

Journal: :journal of algebraic systems 2015
moharram aghapournahr khadijeh ahmadi-amoli miryousef sadeghi

‎we introduce a generalization of the notion of‎ depth of an ideal on a module by applying the concept of‎ local cohomology modules with respect to a pair‎ ‎of ideals‎. ‎we also introduce the concept of $(i,j)$-cohen--macaulay modules as a generalization of concept of cohen--macaulay modules‎. ‎these kind of modules are different from cohen--macaulay modules‎, as an example shows‎. ‎also an art...

Journal: :Facta Universitatis, Series: Mathematics and Informatics 2020

2010
GABRIEL DEBS

Let £ be a metric compact space. We consider the space 3T{E) of all compact subsets of E endowed with the topology of the Hausdorff metric and the space Jt{E) of all positive measures on E endowed with its natural w*-topology. We study c-ideals of 5F(E) of the form I = Ip = {K e 5P(E): n(K) = 0,V^SP} where P is a given family of positive measures on E. If M is the maximal family such that / = I...

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