Zobrazeno 1 - 10
of 262
pro vyhledávání: '"CALDAS, MIGUEL"'
Autor:
Caldas, Miguel
Publikováno v:
Pro Mathematica. 25(49):125-132
A function is dened to be hardly e-open provided that theinverse image of each e-dense subset of the codomain that is contained in a proper open set is e-dense in the domain. Characterizations and properties of hardly e-open functionsare presented.
Externí odkaz:
http://revistas.pucp.edu.pe/index.php/promathematica/article/view/2659/2605
http://repositorio.pucp.edu.pe/index/handle/123456789/97022
http://repositorio.pucp.edu.pe/index/handle/123456789/97022
Publikováno v:
Pro Mathematica; Vol. 20, Núm. 39-40 (2006); 119-133
In this paper, we show that a pointwise λ -symmetric λ -isotonic λ -closure function is uniquely determined by the pairs of sets it separates. We then show that when the λ -closure function of the domain is λ -isotonic and the λ -closure functi
Publikováno v:
Pro Mathematica; Vol. 23, Núm. 45-46 (2009); 155-174
The concept of (b, s)-continuous functions in topological spaces is introduced and studied. Some of their characteristic properties are considered. Also we investigate the relationships between these classes of functions and other classes of function
Autor:
Caldas, Miguel
Publikováno v:
Pro Mathematica; Vol. 24, Núm. 47-48 (2010); 225-234
A new class of functions, called somewhat e-continuous functions, has been defined and studied by making use of e-open sets. Characterizations and properties of somewhat e-continuous functions are presented.
Autor:
Caldas, Miguel, Jafari, Saeid
Publikováno v:
Pro Mathematica; Vol. 23, Núm. 45-46 (2009); 147-154
In this note, we present some of the basic properties of the classes of functions called strongly preclosed closed and pre-irresolute functions in topological spaces.
Autor:
Caldas, Miguel, Navalagi, Govindappa
Publikováno v:
Pro Mathematica; Vol. 22, Núm. 43-44 (2008); 103-121
In this paper we introduce two classes of functions called weakly δ -open and weakly δ -closed functions. We obtain their characterizations, their basic properties and their relationships with other types of functions between topological spaces.
Autor:
Caldas, Miguel, Jafari, Saeid
Publikováno v:
Pro Mathematica; Vol. 19, Núm. 37-38 (2005); 39-50
The notion of rare continuity was introduced by Popa {15} as a new generalization of weak continuity {7}. In this paper, we introduce a new class of functions called rarely pre- θ -continuous functions as a new generalization of the class of strongl
Autor:
Caldas, Miguel
Publikováno v:
Pro Mathematica; Vol. 9, Núm. 17-18 (1995); 45-52
D-K-Mackey locally K-convex spaces are introduced and a description of their topologies is obtained.
Autor:
Caldas, Miguel
Publikováno v:
Pro Mathematica; Vol. 8, Núm. 15-16 (1994); 115-121
En este trabajo investigamos el axioma de separación en espacios semi T ½ y estudiamos algunas de sus propiedades básicas. Además de esto, analizamos las relaciones entre este axioma de separación con los bien conocidos axiomas para los espacios
Autor:
Caldas, Miguel
Publikováno v:
Pro Mathematica; Vol. 26, Núm. 51-52 (2012); 75-85
Popa [13] introduced the notion of rare continuity. In the same spirit, we introduce a new class of functions called rarely βθ-continuous functions by utilizing the notion of β-θ-open sets. We also investigate some of its fundamental properties.
Externí odkaz:
http://revistas.pucp.edu.pe/index.php/promathematica/article/view/8537/8893
http://repositorio.pucp.edu.pe/index/handle/123456789/96217
http://repositorio.pucp.edu.pe/index/handle/123456789/96217