In analogy with the concept of bi-ideal of Γ-near subtraction semigroups, we introduce the notion of minimal bi-deal of Γ-near subtraction semigroups. In this paper, we obtain a necessary and sufficient condition for a zero-symmetric Γ-near subtraction semigroup to be a Γ-near – field. Further we have proved some properties of minimal bi-deal of Γ-near subtraction semigroupsand its characterization theorems.

In this paper, we introduce and study the concept of almost (i, j)-semi-I-continuous functions in ideal bitopological spaces.

In this paper, we introduce and study (i, j)-semi-I-R 0 and (i, j)-semi-I-R 1 spaces. Also we obtain several characterizations of this axioms.

In this paper, G-semiopen sets are used to define a weak separation axiom and to study some of their basic properties.

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