A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points

Let Wn be C∞ complete, simply connected n-dimensional Riemannian manifolds without conjugate points. Assume that S⊂W2 is starshaped where kerS≠S. For every point x∈S∖kerS, define A(x)={y: y lies on some geodesic segment in S from x to a point of kerS}. There is a finite collection A of all maximal A...

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Main Authors: Adem Kılıcman, Wedad Saleh
Format: Article
Language:English
Published: Hindawi Limited 2014-01-01
Series:Journal of Function Spaces
Online Access:http://dx.doi.org/10.1155/2014/675735
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spelling doaj-7da76d92860c4befb877c03b68e219dd2020-11-24T20:56:50ZengHindawi LimitedJournal of Function Spaces2314-88962314-88882014-01-01201410.1155/2014/675735675735A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate PointsAdem Kılıcman0Wedad Saleh1Department of Mathematics and Institute for Mathematical Research, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MalaysiaDepartment of Mathematics and Institute for Mathematical Research, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MalaysiaLet Wn be C∞ complete, simply connected n-dimensional Riemannian manifolds without conjugate points. Assume that S⊂W2 is starshaped where kerS≠S. For every point x∈S∖kerS, define A(x)={y: y lies on some geodesic segment in S from x to a point of kerS}. There is a finite collection A of all maximal A sets whose union is S. Further, kerS=∩{A:A in A}.http://dx.doi.org/10.1155/2014/675735
collection DOAJ
language English
format Article
sources DOAJ
author Adem Kılıcman
Wedad Saleh
spellingShingle Adem Kılıcman
Wedad Saleh
A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
Journal of Function Spaces
author_facet Adem Kılıcman
Wedad Saleh
author_sort Adem Kılıcman
title A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
title_short A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
title_full A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
title_fullStr A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
title_full_unstemmed A Note on Starshaped Sets in 2-Dimensional Manifolds without Conjugate Points
title_sort note on starshaped sets in 2-dimensional manifolds without conjugate points
publisher Hindawi Limited
series Journal of Function Spaces
issn 2314-8896
2314-8888
publishDate 2014-01-01
description Let Wn be C∞ complete, simply connected n-dimensional Riemannian manifolds without conjugate points. Assume that S⊂W2 is starshaped where kerS≠S. For every point x∈S∖kerS, define A(x)={y: y lies on some geodesic segment in S from x to a point of kerS}. There is a finite collection A of all maximal A sets whose union is S. Further, kerS=∩{A:A in A}.
url http://dx.doi.org/10.1155/2014/675735
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