Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space

In this study, the existence of Bertrand curves (in the classical sense, i.e., curves with a common principal normal vector field) in four-dimensional Euclidean space is demonstrated using a novel approach. The necessary conditions for a regular curve to be a Bertrand curve pair are obtained. Furthe...

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Main Authors: Yanlin Li, Osman Keçilioğlu, Kazım İlarslan
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/14/4/253
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author Yanlin Li
Osman Keçilioğlu
Kazım İlarslan
author_facet Yanlin Li
Osman Keçilioğlu
Kazım İlarslan
author_sort Yanlin Li
collection DOAJ
description In this study, the existence of Bertrand curves (in the classical sense, i.e., curves with a common principal normal vector field) in four-dimensional Euclidean space is demonstrated using a novel approach. The necessary conditions for a regular curve to be a Bertrand curve pair are obtained. Furthermore, the relationship between Bertrand curves and Combescure-related curves (pairs of curves with parallel Frenet vectors) is established, and several geometric properties are derived. Additionally, examples are constructed for both Bertrand curve pairs and Combescure-related curve pairs, and their orthogonal projections onto three-dimensional subspaces of four-dimensional space are visualized.
format Article
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institution OA Journals
issn 2075-1680
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publisher MDPI AG
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series Axioms
spelling doaj-art-ebb16c7eabb2472f9ee74867b3a693752025-08-20T02:24:39ZengMDPI AGAxioms2075-16802025-03-0114425310.3390/axioms14040253Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional SpaceYanlin Li0Osman Keçilioğlu1Kazım İlarslan2School of Mathematics, Hangzhou Normal University, Hangzhou 311121, ChinaDepartment of Mathematics, Faculty of Engineering and Natural Sciences, Kırıkkale University, 71450 Kırıkkale, TurkeyDepartment of Mathematics, Faculty of Engineering and Natural Sciences, Kırıkkale University, 71450 Kırıkkale, TurkeyIn this study, the existence of Bertrand curves (in the classical sense, i.e., curves with a common principal normal vector field) in four-dimensional Euclidean space is demonstrated using a novel approach. The necessary conditions for a regular curve to be a Bertrand curve pair are obtained. Furthermore, the relationship between Bertrand curves and Combescure-related curves (pairs of curves with parallel Frenet vectors) is established, and several geometric properties are derived. Additionally, examples are constructed for both Bertrand curve pairs and Combescure-related curve pairs, and their orthogonal projections onto three-dimensional subspaces of four-dimensional space are visualized.https://www.mdpi.com/2075-1680/14/4/253bertrand curvescombescure-related space curvesparallel frenet frame
spellingShingle Yanlin Li
Osman Keçilioğlu
Kazım İlarslan
Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
Axioms
bertrand curves
combescure-related space curves
parallel frenet frame
title Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
title_full Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
title_fullStr Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
title_full_unstemmed Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
title_short Generalized Bertrand Curve Pairs in Euclidean Four-Dimensional Space
title_sort generalized bertrand curve pairs in euclidean four dimensional space
topic bertrand curves
combescure-related space curves
parallel frenet frame
url https://www.mdpi.com/2075-1680/14/4/253
work_keys_str_mv AT yanlinli generalizedbertrandcurvepairsineuclideanfourdimensionalspace
AT osmankecilioglu generalizedbertrandcurvepairsineuclideanfourdimensionalspace
AT kazımilarslan generalizedbertrandcurvepairsineuclideanfourdimensionalspace