Results 21 to 30 of about 1,918 (217)

Sequential order of product spaces

open access: yesTopology and its Applications, 1995
This paper investigates the sequential order of the products of sequential spaces. The following are main results in this paper. Here, for a sequential space \(X\), let \(so (X)\) be the sequential order of \(X\). Also, for a space \(X\), let \(S(X)\) be the sequential coreflection of \(X\); that is, \(S[X]\) is a new space having a sequential closure ...
Nogura, T., Shibakov, A.
openaire   +3 more sources

An Efficient Parallel Method for Mining Frequent Closed Sequential Patterns

open access: yesIEEE Access, 2017
Mining frequent closed sequential pattern (FCSPs) has attracted a great deal of research attention, because it is an important task in sequences mining.
Bao Huynh, Bay Vo, Vaclav Snasel
doaj   +1 more source

An Ascoli theorem for sequential spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
Ascoli theorems characterize “precompact” subsets of the set of morphisms between two objects of a category in terms of “equicontinuity” and “pointwise precompactness,” with appropriate definitions of precompactness and equicontinuity in the studied ...
Gert Sonck
doaj   +1 more source

A GENERALIZATION OF A SEQUENTIAL SPACE AND RELATED SPACES [PDF]

open access: yesHonam Mathematical Journal, 2014
Abstract. In this paper, we introduce a new concept of a count-ably sequential space which is a generalization of a sequential spaceand study some properties of a countably sequential space and re-lations among the space and related spaces. 1. IntroductionAll spaces considered here are always assumed to be in nite T 1 .
Woo Chorl Hong, Seonhee Kwon
openaire   +1 more source

Some Results on Conditionally Sequential Absorbing Maps in Multiplicative Metric Space

open access: yesInternational Journal of Analysis and Applications, 2023
This paper aims to prove two general fixed point theorems in multiplicative metric space (MMS) by using reciprocally continuous mappings and conditionally sequential absorbing mappings.
T. Thirupathi, V. Srinivas
doaj   +1 more source

Well-placement optimisation using sequential artificial neural networks

open access: yesEnergy Exploration & Exploitation, 2018
In this study, a new algorithm is proposed by employing artificial neural networks in a sequential manner, termed the sequential artificial neural network, to obtain a global solution for optimizing the drilling location of oil or gas reservoirs.
Ilsik Jang   +4 more
doaj   +1 more source

Sequential Recommendation Based on Multi-space Attribute Information Fusion [PDF]

open access: yesJisuanji kexue
The goal of sequential recommendation is to model users' dynamic interests from their historical behaviors,and hence to make recommendations related to the users' interests.Recently,attribute information has been demonstrated to improve the performance ...
WANG Zihong, SHAO Yingxia, HE Jiyuan, LIU Jinbao
doaj   +1 more source

Sequential Design-Space Reduction and Its Application to Hull-Form Optimization

open access: yesJournal of Marine Science and Engineering, 2023
Hull-form optimization is a complex engineering problem. Owing to the several numerical simulations and complex design-performance spaces, hull-form optimization is considered an inefficient process, which makes determining the global optimum difficult ...
Zu-Yuan Liu   +4 more
doaj   +1 more source

Minimal sequential Hausdorff spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
A sequential space (X, T) is called minimal sequential if no sequential topology on X is strictly weaker than T. This paper begins the study of minimal sequential Hausdorff spaces. Characterizations of minimal sequential Hausdorff spaces are obtained using filter bases, sequences, and functions satisfying certain graph conditions.
openaire   +2 more sources

On I-Fréchet-Urysohn spaces and sequential I-convergence groups [PDF]

open access: yesMathematica Moravica, 2019
In this paper, we introduce the concept of sequential I-convergence spaces and I-Fréchet-Urysohn space and study their properties. We give a sufficient condition for the product of two sequential I-convergence spaces to be a sequential I-convergence ...
Renukadevi V., Vijayashanthi P.
doaj  

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