I P -separation axioms in ideal bitopological ordered spaces II | ||
Journal of the Egyptian Mathematical Society | ||
Volume 24, Issue 2, 2016, Pages 279-285 PDF (585.72 K) | ||
DOI: 10.1016/j.joems.2015.05.004 | ||
Authors | ||
A. Kandil1; O. Tantawy2; S. A. El-Sheikh3; M. Hosny3 | ||
1Department of Mathematics, Faculty of Science, Helwan University, Egypt | ||
2Department of Mathematics, Faculty of Science, Zagazig University, Cairo, Egypt | ||
3Department of Mathematics, Faculty of Education, Ain Shams University, 11757 Beside Tabary School, Roxy, Cairo, Egypt | ||
Abstract | ||
The main purpose of this paper was to continue the study of separation axioms which is introduced in part I (Kandil et al., 2015). Whereas the part I (Kandil et al., 2015) was devoted to the axioms I PT i -ordered spaces, i = 0 , 1 , 2 , in the part II the axioms I PT i -ordered spaces, i = 3 , 4 , 5 and I PR j -ordered spaces, j = 2 , 3 , 4 are introduced and studied. Clearly, if I = { φ} in these axioms, then the previous axioms (Singal and Singal, 1971; Abo Elhamayel Abo Elwafa, 2009) coincide with the present axioms. Therefore, the current work is a generalization of the previous one. In addition, the relationships between these axioms and the previous one axioms have been obtained. Some exam- ples are given to illustrate the concepts. Moreover, some important results related to these separations have been obtained | ||
Keywords | ||
Ideal bitopological ordered spaces; I-increasing ( I-decreasing) sets; IP-regular ordered spaces; IP-normal ordered spaces; IP-completely normal ordered spaces | ||
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