Vector fields on bifurcation diagrams of quasi singularities

We describe the generators of the vector fields tangent to the bifurcation diagrams and caustics of simple quasi boundary singularities. As an application, submersions on the pair $ (G, B) $, which consists of a cuspidal edge $ G $ in $ \mathbb{R}^3 $ that contains a distinguishing regular curve $ B...

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Main Authors: Fawaz Alharbi, Yanlin Li
Format: Article
Language:English
Published: AIMS Press 2024-12-01
Series:AIMS Mathematics
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Online Access:https://www.aimspress.com/article/doi/10.3934/math.20241710
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author Fawaz Alharbi
Yanlin Li
author_facet Fawaz Alharbi
Yanlin Li
author_sort Fawaz Alharbi
collection DOAJ
description We describe the generators of the vector fields tangent to the bifurcation diagrams and caustics of simple quasi boundary singularities. As an application, submersions on the pair $ (G, B) $, which consists of a cuspidal edge $ G $ in $ \mathbb{R}^3 $ that contains a distinguishing regular curve $ B $, are classified. This classification was used as a means to investigate the contact that a general cuspidal edge $ G $ equipped with a regular curve $ B\subset G $ has with planes. The singularities of the height functions on $ (G, B) $ are discussed and they are related to the curvatures and torsions of the distinguished curves on the cuspidal edge. In addition to this, the discriminants of the versal deformations of the submersions that were accomplished are described and they are related to the duality of the cuspidal edge.
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spelling doaj-art-69e88e9a333b4e76aad3ef40486333112025-01-23T07:53:25ZengAIMS PressAIMS Mathematics2473-69882024-12-01912360473606810.3934/math.20241710Vector fields on bifurcation diagrams of quasi singularitiesFawaz Alharbi0Yanlin Li1Department of Mathematics, College of Sciences, Umm Al-Qura University, Makkah 21955, Saudi ArabiaSchool of Mathematics, Hangzhou Normal University, Hangzhou 311121, ChinaWe describe the generators of the vector fields tangent to the bifurcation diagrams and caustics of simple quasi boundary singularities. As an application, submersions on the pair $ (G, B) $, which consists of a cuspidal edge $ G $ in $ \mathbb{R}^3 $ that contains a distinguishing regular curve $ B $, are classified. This classification was used as a means to investigate the contact that a general cuspidal edge $ G $ equipped with a regular curve $ B\subset G $ has with planes. The singularities of the height functions on $ (G, B) $ are discussed and they are related to the curvatures and torsions of the distinguished curves on the cuspidal edge. In addition to this, the discriminants of the versal deformations of the submersions that were accomplished are described and they are related to the duality of the cuspidal edge.https://www.aimspress.com/article/doi/10.3934/math.20241710bifurcation diagramcausticvector fieldcuspidal edgecontactcurvatures and torsionsheight functioncontactdeformationsdiscriminatdaul
spellingShingle Fawaz Alharbi
Yanlin Li
Vector fields on bifurcation diagrams of quasi singularities
AIMS Mathematics
bifurcation diagram
caustic
vector field
cuspidal edge
contact
curvatures and torsions
height function
contact
deformations
discriminat
daul
title Vector fields on bifurcation diagrams of quasi singularities
title_full Vector fields on bifurcation diagrams of quasi singularities
title_fullStr Vector fields on bifurcation diagrams of quasi singularities
title_full_unstemmed Vector fields on bifurcation diagrams of quasi singularities
title_short Vector fields on bifurcation diagrams of quasi singularities
title_sort vector fields on bifurcation diagrams of quasi singularities
topic bifurcation diagram
caustic
vector field
cuspidal edge
contact
curvatures and torsions
height function
contact
deformations
discriminat
daul
url https://www.aimspress.com/article/doi/10.3934/math.20241710
work_keys_str_mv AT fawazalharbi vectorfieldsonbifurcationdiagramsofquasisingularities
AT yanlinli vectorfieldsonbifurcationdiagramsofquasisingularities