On some separation axioms and -closure
D. Janković (1980)
Matematički Vesnik
Musielak, J. (1962)
General Topology and its Relations to Modern Analysis and Algebra
Izu Vaisman (1977)
Annales de l'institut Fourier
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...
Wang Shutang (1984/1985)
Manuscripta mathematica
J. Jastrzębski, Jacek Jędrzejewski, Tomasz Natkaniec (1991)
Fundamenta Mathematicae
W. F. Pfeffer (1976)
Colloquium Mathematicae
Ali Fora (1981)
Fundamenta Mathematicae
B. K. Ray (1978)
Matematički Vesnik
I. K. Argyros (1987)
Matematički Vesnik
Telgársky, R. (1977)
General topology and its relations to modern analysis and algebra IV
Montserrat Pons (1979)
Stochastica
Ekici, Erdal (2004)
Applied Mathematics E-Notes [electronic only]
Imdad, M., Khan, M.S., Sessa, S. (1988)
International Journal of Mathematics and Mathematical Sciences
I. Pop (1996)
Revista Matemática de la Universidad Complutense de Madrid
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.
V. Popa (1984)
Matematički Vesnik
G. Thangaraj, Ganesan Balasubramanian (2001)
Kybernetika
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.
D. L. Grant, I. L. Reilly (1990)
Matematički Vesnik
I. L. Reilly, M. K. Vamanamurthy (1986)
Matematički Vesnik
Schmets, J. (1977)
General topology and its relations to modern analysis and algebra IV
Luc Demers (1975)
Fundamenta Mathematicae