A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint

We introduce the concrete category <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <...

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Main Authors: Jeong-Gon Lee, Kul Hur, Xueyou Chen
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/4/482
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author Jeong-Gon Lee
Kul Hur
Xueyou Chen
author_facet Jeong-Gon Lee
Kul Hur
Xueyou Chen
author_sort Jeong-Gon Lee
collection DOAJ
description We introduce the concrete category <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] of cubic <i>H</i>-relational spaces and P-preserving [resp. R-preserving] mappings between them and study it in a topological universe viewpoint. In addition, we prove that it is Cartesian closed over <inline-formula> <math display="inline"> <semantics> <mi mathvariant="bold">Set</mi> </semantics> </math> </inline-formula>. Next, we introduce the subcategory <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>P</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>R</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] of <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] and investigate it in the sense of a topological universe. In particular, we obtain exponential objects in <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>P</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>R</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] quite different from those in <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>].
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spelling doaj.art-1947d1ec56864fc7bb342851be127d982023-11-19T20:23:41ZengMDPI AGMathematics2227-73902020-04-018448210.3390/math8040482A Study on Cubic <i>H</i>-Relations in a Topological Universe ViewpointJeong-Gon Lee0Kul Hur1Xueyou Chen2Division of Applied Mathematics, Nanoscale Science and Technology Institute, Wonkwang University, Iksan 54538, KoreaDepartment of Applied Mathematics, Wonkwang University, 460, Iksan-daero, Iksan-Si, Jeonbuk 54538, KoreaSchool of Mathematics, Shandong University of Technology, Zibo 255049, ChinaWe introduce the concrete category <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] of cubic <i>H</i>-relational spaces and P-preserving [resp. R-preserving] mappings between them and study it in a topological universe viewpoint. In addition, we prove that it is Cartesian closed over <inline-formula> <math display="inline"> <semantics> <mi mathvariant="bold">Set</mi> </semantics> </math> </inline-formula>. Next, we introduce the subcategory <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>P</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>R</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] of <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] and investigate it in the sense of a topological universe. In particular, we obtain exponential objects in <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>P</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mrow> <mi>R</mi> <mo>,</mo> <mi>R</mi> </mrow> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>] quite different from those in <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>P</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula> [resp. <inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mi mathvariant="bold">CRel</mi> <mi>R</mi> </msub> <mrow> <mo stretchy="false">(</mo> <mi>H</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </semantics> </math> </inline-formula>].https://www.mdpi.com/2227-7390/8/4/482cubic <i>H</i>-relational spacecubic <i>H</i>-reflexive relationtopological categorycartesian closed categorytopological universe
spellingShingle Jeong-Gon Lee
Kul Hur
Xueyou Chen
A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
Mathematics
cubic <i>H</i>-relational space
cubic <i>H</i>-reflexive relation
topological category
cartesian closed category
topological universe
title A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
title_full A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
title_fullStr A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
title_full_unstemmed A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
title_short A Study on Cubic <i>H</i>-Relations in a Topological Universe Viewpoint
title_sort study on cubic i h i relations in a topological universe viewpoint
topic cubic <i>H</i>-relational space
cubic <i>H</i>-reflexive relation
topological category
cartesian closed category
topological universe
url https://www.mdpi.com/2227-7390/8/4/482
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AT jeonggonlee studyoncubicihirelationsinatopologicaluniverseviewpoint
AT kulhur studyoncubicihirelationsinatopologicaluniverseviewpoint
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