Results 31 to 40 of about 3,484,215 (187)

Some Results of Feebly Open and Feebly Closed Mappings

مجلة بغداد للعلوم, 2009
The main purpose of this paper is to study feebly open and feebly closed mappings and we proved several results about that by using some concepts of topological feebly open and feebly closed sets , semi open (- closed ) set , gs-(sg-) closed set and ...
Baghdad Science Journal
doaj   +1 more source

Preservation of the Borel class under open-$LC$ functions

, 2011
Let $X$ be a Borel subset of the Cantor set \textbf{C} of additive or multiplicative class ${\alpha},$ and $f: X \to Y$ be a continuous function with compact preimages of points onto $Y \subset \textbf{C}.$ If the image $f(U)$ of every clopen set $U$ is ...
Ostrovsky, Alexey
core   +1 more source

Algorithmic Randomness and Capacity of Closed Sets

, 2011
We investigate the connection between measure, capacity and algorithmic randomness for the space of closed sets. For any computable measure m, a computable capacity T may be defined by letting T(Q) be the measure of the family of closed sets K which have
A. McLinden and R.D. Mauldin, B. Kjos-Hanssen, C. Dellacheries, D. Diamondstone and B. Kjos-Hanssen, Douglas Cenzer, Ferit Toska, G. Barmpalias, P. Brodhead, D. Cenzer,, G. Choquet, H.E. Robbins, Ning Zhong, Paul Brodhead, Sebastian Wyman   +11 more
core   +1 more source

THE ALMOST PRESUMABLE MAXIMALITY OF SOME TOPOLOGICAL LEMMA [PDF]

, 2010
Some splitting lemma of topological nature provides fundamental information when dealing with dynamics. Because the set involved, namely X \ P is neither open nor closed, a natural question arise: can this set be modified in order to obtain aditional ...
Munteanu, Florian, Mustafa, Octavian
core   +1 more source

Remarks on subcategories of artinian modules [PDF]

, 2011
We study two subcategories of the category of artinian modules, a wide subcategory and a Serre subcategory. We prove that all wide subcategories of artinian modules are Serre subcategories.
Hiramatsu, Naoya
core  

Effective Capacity and Randomness of Closed Sets

, 2010
We investigate the connection between measure and capacity for the space of nonempty closed subsets of {0,1}*. For any computable measure, a computable capacity T may be defined by letting T(Q) be the measure of the family of closed sets which have ...
Douglas Cenzer, Ning Zhong, Paul Brodhead, Xizhong Zheng   +3 more
core   +2 more sources

Equations in dual variables for Whittaker functions [PDF]

, 2003
It is known that the Whittaker functions $w(q,\lambda)$ associated to the group SL(N) are eigenfunctions of the Hamiltonians of the open Toda chain, hence satisfy a set of differential equations in the Toda variables $q_i$.
Babelon, O.
core   +1 more source

OnNeutrosophic Crisp g#x Closed Set Operators [PDF]

Neutrosophic Sets and Systems
The concept of g#α closed set in general topological spaces was first introduced by Muthukumaraswamy K et. al.,. Recently, kokilavani V, Tharani K et. al., introduced neutrosophic crisp g#α closed set in neutrosophic crisp topological space. Now, in this
K. Tharani, V. Kokilavani
doaj   +1 more source

Topological pressures for $\epsilon$-stable and stable sets

, 2010
Topological pressures of the preimages of $\epsilon$-stable sets and some certain closed subsets of stable sets in positive entropy systems are investigated.
Ercai Chen, Walters, Xianfeng Ma, Xiong
core   +1 more source

On certain types of sets in ideal topological spaces

Annals of the West University of Timisoara: Mathematics and Computer Science, 2015
In the present article we introduce certain typical sets in an ideal topological space, some such corresponding versions in topological spaces being already there in the literature.
Mandal Dhananjoy, Mukherjee M. N.
doaj   +1 more source