eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences December 2009 21 3 881 884 jusps-A 1270 article Md. Arshaduzzaman (shayan.zaman@gmail.com) 1 R.K. DAS 2 Mumtaz Mohalla P.O. Naugachia, Dist. Bhagalpur (Bihar) P.G. Department of Physics, S.K.M., University, Dumka, Jharkhand (INDIA) <p style="text-align: justify;">The paper is addressed to the introduction of some new subspaces of a fuzzy topological space viz. fuzzy semi closed and fuzzy semi regular sub-space, extremely disconnected sub-space. We also find out some properties of such spaces relative to the fuzzy topological space.</p> https://www.ultrascientist.org/paper/1270/ sub spaces fuzzy topological space