Results 91 to 100 of about 15,159 (191)

Directed bases with net convergence [PDF]

Surveys in Mathematics and its Applications
The concept of a basis having a sequence of elements in a topological vector space is extended to a concept of a directed basis having a net of elements in a topological vector space.
AR. Murugan, C. Ganesa Moorthy, CT. Ramasamy   +2 more
doaj  

On a lower continuity of upper continuous mappings with values in the Sorgenfrey line(in Ukrainian)

Математичні Студії, 2013
We shown that for each lower continuous finite valued mapping from metrizable topological space $X$ inSorgenfrey line the set of points of upper continuous is residual in $X$.
O. V. Maslyuchenko, V. K. Maslyuchenko, O. G. Fotiy   +2 more
doaj  

The attainable spaces and its analogues (in Ukrainian) [PDF]

Математичні Студії, 2012
In this paper we investigate interplays between several type of the attainable spaces. We introduce the class of discreetly saturated spaces which contains all metrizable spaces and all hereditarily separable perfectly normal spaces and check that a ...
O. V. Maslyuchenko
doaj  

On quasi-irresolute characterization of topological loops. [PDF]

Sci Prog, 2021
Alolaiyan H, Maqbool K, Yousaf A, Razaq A.   +3 more
europepmc   +1 more source

$\pi$-metrizable spaces and strongly $\pi$-metrizable spaces

, 2013
A space $X$ is said to be $\pi$-metrizable if it has a $\sigma$-discrete $\pi$-base. In this paper, we mainly give affirmative answers for two questions about $\pi$-metrizable spaces. The main results are that: (1) A space $X$ is $\pi$-metrizable if and only if $X$ has a $\sigma$-hereditarily closure-preserving $\pi$-base; (2) $X$ is $\pi$-metrizable ...
Lin, Fucai, Lin, Shou
openaire   +1 more source

Characterizations of sn-metrizable spaces

Publications de l'Institut Mathematique, 2003
We give some characterizations of sn-metrizable spaces. We prove that a space is an sn-metrizable space if and only if it has a locally-finite point-star sn-network. As an application of the result, a space is an sn-metrizable space if and only if it is a sequentially quotient, ? (compact), ?-image of a metric space.
openaire   +3 more sources

Projective Metrizability and Formal Integrability

Symmetry, Integrability and Geometry: Methods and Applications, 2011
The projective metrizability problem can be formulated as follows: under what conditions the geodesics of a given spray coincide with the geodesics of some Finsler space, as oriented curves.
Ioan Bucataru, Zoltán Muzsnay
doaj   +1 more source

Metrizable uniform spaces

, 2011
161 pages.
openaire   +2 more sources

Generalised Lattice Metrized Spaces (gl-metrized spaces)

International Journal of Scientific and Innovative Mathematical Research, 2023
openaire   +1 more source

Thermodynamic Formalism for General Iterated Function Systems with Measures. [PDF]

Qual Theory Dyn Syst, 2023
Brasil JE, Oliveira ER, Souza RR.
europepmc   +1 more source