Results 41 to 50 of about 118,692,044 (90)

A short note on hit-and-miss hyperspaces [PDF]

open access: yes, 2003
Based on some set-theoretical observations, compactness results are given for general hit-and-miss hyperspaces. Compactness here is sometimes viewed splitting into “κ-Lindelöfness” and “κ-compactness” for cardinals κ.
Poppe, Harry   +3 more
core   +1 more source

Vietoris-type topologies on hyperspaces

open access: yes, 2018
We study the (F, G)-hit-and-miss topology introduced by Clementino and Tholen [4]. The same topology was introduced independently in the preliminary version [12] of this paper under the name of Vietoris-type hypertopology (at that time we were not aware ...
Ivanova-Dimova, Elza
core  

Selection principles in hyperspaces with generalized Vietoris topologies [PDF]

open access: yes, 2008
We continue investigations of Čech closure spaces and their hyperspaces started in [M. Mršević, M. Jelić, Selection principles and hyperspace topologies in closure spaces, J. Korean Math. Soc. 43 (2006) 1099–1114] and [M. Mršević, M.
Mršević, Mila, Jelić, Milena
core   +1 more source

New topology for voltage balancing in railway substations

open access: yes, 2012
This paper deals with a new technique of voltage unbalance compensation for single phase railway substations. Using the concept of Chopper Controlled Impedance, the authors study the feasibility of an active Steinmetz circuit based on AC choppers.
New topology for voltage balancing in railway substations Raimondo G   +3 more
core  

On the hyperspaces of meager and regular continua [PDF]

open access: yes
[EN] Given a metric continuum X, we consider the collection of all regular subcontinua of X and the collection of all meager subcontinua of X, these hyperspaces are denoted by D(X) and M(X), respectively. It is known that D(X) is compact if and only if D(
Javier Camargo   +5 more
core   +1 more source

Bornologies and hyperspaces

open access: yes, 2012
A bornology on a nonempty set X is a family of subsets of X that is closed under taking finite unions, that is hereditary, and that forms a cover of X. Bornologies have been widely applied in functional analysis and topology to form the general framework
Cao, J
core  

Bornologies and hyperspaces

open access: yes, 2011
A bornology on a nonempty set X is a family of subsets of X that is closed under taking finite unions, that is hereditary, and that forms a cover of X. Bornologies have been widely applied in functional analysis and topology to form the general framework
Cao, J
core  

On hyperspaces of max-plus and max-min convex sets

open access: yes, 2017
The paper is devoted to some new results concerning the topology of hyperspaces of max-plus convex subsets in Euclidean spaces and some other ...
Mykhailo Zarichnyi   +3 more
core   +1 more source

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