Filters and games

Semi-G-filters, Stonean filters, MTL-filters, divisible filters, BL-filters and regular filters in residuated lattices

At present, the filter theory of $BL$textit{-}algebras has been widelystudied, and some important results have been published (see for examplecite{4}, cite{5}, cite{xi}, cite{6}, cite{7}). In other works such ascite{BP}, cite{vii}, cite{xiii}, cite{xvi} a study of a filter theory inthe more general setting of residuated lattices is done, generalizing thatfor $BL$textit{-}algebras. Note that fil...

. L O ] 1 9 M ay 1 99 9 FILTERS AND GAMES

We obtain game–theoretic characterizations for meagerness and rareness of filters on ω. One of the classical methods for obtaining a set of real numbers which does not have the property of Baire, is to interpret appropriate filters on N = {1,2,3, . . . } as subsets of [0, 1]. Filters which result in a set having the property of Baire have nice combinatorial characterizations, due to Talagrand [...

$z^circ$-filters and related ideals in $C(X)$

In this article we introduce the concept of $z^circ$-filter on a topological space $X$. We study and investigate the behavior of $z^circ$-filters and compare them  with corresponding ideals, namely, $z^circ$-ideals of $C(X)$,  the ring of real-valued continuous functions on a completely regular Hausdorff space $X$. It is observed that $X$ is a compact space if and only if every $z^circ$-filter ...

Design Algorithms for Doppler MTI and Filters (Using Chebyshev Approximation)

Learning about Recycling and Reuse through Pre-School Games

Learning about Recycling and Reuse through Pre-School Games S.M. Shobeyri, Ph.D. H. Meybodi A. Saraadipoor S. Rashidi Environmental education is the most fundamental approach to environmental protection and can begin from the pre-school level and through the use of games. To show the effectiveness of this approach, a random sample of 30 preschoolers of ages 5 and 6 was se...