On some separation axioms and -closure
On some spaces of functions and distributions
On some spaces which are covered by a product space
In this note, a topological version of the results obtained, in connection with the de Rham reducibility theorem (Comment. Math. Helv., 26 ( 1952), 328–344), by S. Kashiwabara (Tôhoku Math. J., 8 (1956), 13–28), (Tôhoku Math. J., 11 (1959), 327–350) and Ia. L. Sapiro (Izv. Bysh. Uceb. Zaved. Mat. no6, (1972), 78–85, Russian), (Izv. Bysh. Uceb. Zaved. Mat. no4, (1974), 104–113, Russian) is given. Thus a characterization of a class of topological spaces covered by a product space is obtained and the...
On Some Spaces which can be Partioned by the Rational Line.
On some subclasses of Darboux functions
On some subspaces of the Helly space
On some test spaces in dimension theory
On some theorems of Ćirić
On some theorems of Mishra, Ćirić and Iseki
On some topological games
On some topologies on a generalized metric space.
On some types of continuous fuzzy functions.
On some weak conditions of commutativity in common fixed point theorems.
On some weak monomorphisms and weak epimorphisms of pro-HTop*.
Related to Shape Theory, in a previous paper (1992) we studied weak monomorphisms and weak epimorphisms in the category of pro-groups. In this note we give some intrinsic characterizations of the weak monomorphisms and the weak epimorphisms in pro-HTop* in the case when one of the two objects of such a morphism is a rudimentary system.
On some weakened forms of continuity for multifunctions
On somewhat fuzzy semicontinuous functions
In this paper the concept of somewhat fuzzy semicontinuous functions, somewhat fuzzy semiopen functions are introduced and studied. Besides giving characterizations of these functions, several interesting properties of these functions are also given. More examples are given to illustrate the concepts introduced in this paper.
On spaces in which a bound on certain cardinal invariants implies closedness
On spaces in which every denumerable subspaces is discrete
On spaces of vector-valued continuous functions
On spaces which have the shape of C. W. complexes