Results 31 to 40 of about 994,296 (276)

Continuous functions with compact support

Applied General Topology, 2004
The main aim of this paper is to investigate a subring of the ring of continuous functions on a topological space X with values in a linearly ordered field F equipped with its order topology, namely the ring of continuous functions with compact support ...
Sudip Kumar Acharyya, K.C. Chattopadhyaya, Partha Pratim Ghosh   +2 more
doaj   +1 more source

On Some Results in Fuzzy Length Space

Al-Mustansiriyah Journal of Science, 2020
In this paper, depending on the notion of fuzzy length space we define the Cartesian product of two fuzzy length spaces. we proved that the Cartesian product of two fuzzy length spaces is a fuzzy length space.
Raghad I. Sabri, Mayada Nazar, Mohammed Ali   +2 more
doaj   +1 more source

$L^p$-Conjecture on Hypergroups [PDF]

Sahand Communications in Mathematical Analysis, 2018
In this paper, we study $L^p$-conjecture on locally compact hypergroups and by some technical proofs we give some sufficient and necessary conditions  for a weighted Lebesgue space  $L^p(K,w)$ to be a convolution Banach algebra, where ...
Seyyed Mohammad Tabatabaie, Faranak Haghighifar   +1 more
doaj   +1 more source

Non-positive curvature and the Ptolemy inequality [PDF]

, 2007
We provide examples of non-locally compact geodesic Ptolemy metric spaces which are not uniquely geodesic. On the other hand, we show that locally compact, geodesic Ptolemy metric spaces are uniquely geodesic.
A. Lytchak, Bowditch, T. Foertsch, V. Schroeder   +3 more
core   +1 more source

Local compactness in approach spaces I [PDF]

International Journal of Mathematics and Mathematical Sciences, 1998
This paper introduces some definitions of a concept of local compactness in approach spaces. The basic relationships between these concepts is studied, and measures of local compactness are defined.
R. Lowen, C. Verbeeck
openaire   +4 more sources

On θ-regular spaces

International Journal of Mathematics and Mathematical Sciences, 1994
In this paper we study θ-regularity and its relations to other topological properties. We show that the concepts of θ-regularity (Janković, 1985) and point paracompactness (Boyte, 1973) coincide.
Martin M. Kovár
doaj   +1 more source

Pairwise locally compact and compactification in

Journal of Kufa for Mathematics and Computer, 2019
The concept of intuitionistic topological space was introduced by Çoker. The aim of this paper is to generalize notions between bitopological spaces and double topological spaces and also give a notion of pairwise locally compact and compactification ...
Rewayda Mohsin
doaj   +1 more source

A local characterization of Kazhdan projections and applications [PDF]

, 2018
We give a local characterization of the existence of Kazhdan projections for arbitary families of Banach space representations of a compactly generated locally compact group $G$.
de la Salle, Mikael
core   +1 more source

A compactness theorem for locally homogeneous spaces [PDF]

ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2022
We prove the existence and uniqueness of geometric models of local isometry classes of locally homogeneous spaces with sectional curvature $|\operatorname{sec}|\leq 1$. Moreover, we show that the set of geometric models is compact in the pointed $\mathcal{C}^{1, }$-topology.
openaire   +3 more sources

Isometry groups of proper metric spaces

, 2012
Given a locally compact Polish space X, a necessary and sufficient condition for a group G of homeomorphisms of X to be the full isometry group of (X,d) for some proper metric d on X is given.
Niemiec, Piotr
core   +1 more source