aim is to
Ostrowski Inequality and Applications in Information Theory
Dual Annihilators in Bounded BCK-Algebras
In this paper, for any two subsets A and C of a bounded BCK-algebra X, the concept of dual annihilator of A with respect to C, denoted by (C : A)d, is introduced and some related properties are investigated. It is proved that if A is a dual ideal and C a normal ideal of an involutory BCK-algebra X, then (C : A)d is the relative pseudocomplement of A with respect to NC. Moreover, applying the concept of dual annihilator, the involutory dual ideal with respect to an ideal is defined, and it is shown that the set of all involutory dual ideals with respect to a normal ideal forms a distributive lattice.
On D-Metacompactness in Bitopological Space
In this paper we define pairwise D-metacompact spaces and study their
properties and their relations with other topological spaces. Several examples are discussed and many will known theorems are generalized concerning metacompact spaces.
Bade-Property; Survey and Comparison with λ-Property, Russo-Dye Theorem and Extremally Richness
In this article, we survey a geometric property, called Bade-property,
originally introduced by William Bade. First, we review Bade's work in normed linear spaces. Next, we illustrate various interesting results of Bade-property in the spaces of convergent sequences established by Aizpuru. Then, we investigate Bade-property in comparison with some other geometric properties, such as λ-property due to Aron and Lohman, Russo-Dye Theorem and extremally richness in C*-algebras, JB*-algebrs/triples and JBW*-triples.
On Almost Contra e*θ-Continuous Functions
The aim of this paper is to introduce and investigate some of fundamental properties of almost contra e*θ-continuous functions via e*θ-closed sets which are defined by Farhan and Yang . Also, we obtain several characterizations of almost contra e*θ-continuous functions. Furthermore, we investigate the relationships between almost contra e*θ-continuous functions and seperation axioms and
e*θ-closedness of graphs of functions.
B. S. Ayhan