Spherical Steiner Symmetrizations

In this paper, we primarily investigate and establish several properties of spherical Steiner symmetrizations, along with the isoperimetric property of the spherical cap in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics...

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Main Authors: Youjiang Lin, Zhilang Deng
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Axioms
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Online Access:https://www.mdpi.com/2075-1680/13/11/751
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author Youjiang Lin
Zhilang Deng
author_facet Youjiang Lin
Zhilang Deng
author_sort Youjiang Lin
collection DOAJ
description In this paper, we primarily investigate and establish several properties of spherical Steiner symmetrizations, along with the isoperimetric property of the spherical cap in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></semantics></math></inline-formula>. Specifically, we study the monotonically decreasing property of the measure of the symmetric difference of two spherical compact sets, the monotonically decreasing property of the spherical diameter of a spherical compact set, the convergence of iterative spherical Steiner symmetrizations, and so on. In particular, we prove that the sequence of iterative spherical Steiner symmetrizations of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>K</mi><mo>⊂</mo><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></mrow></semantics></math></inline-formula>, which follow sequences selected from a finite set of directions, converges to a spherical cap with the same measure as <i>K</i>, extending the result from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">R</mi><mi>n</mi></msup></semantics></math></inline-formula> to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></semantics></math></inline-formula> on Steiner symmetrizations. It provides us with valuable insights for studying the relevant applications and conclusions of spherical Steiner symmetrizations.
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spelling doaj-art-3db79df073a3415caeeae9a76ea5bfc22025-08-20T02:26:45ZengMDPI AGAxioms2075-16802024-10-01131175110.3390/axioms13110751Spherical Steiner SymmetrizationsYoujiang Lin0Zhilang Deng1School of Mathematics and Statistics, Chongqing Technology and Business University, Chongqing 400067, ChinaSchool of Mathematics and Statistics, Chongqing Technology and Business University, Chongqing 400067, ChinaIn this paper, we primarily investigate and establish several properties of spherical Steiner symmetrizations, along with the isoperimetric property of the spherical cap in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></semantics></math></inline-formula>. Specifically, we study the monotonically decreasing property of the measure of the symmetric difference of two spherical compact sets, the monotonically decreasing property of the spherical diameter of a spherical compact set, the convergence of iterative spherical Steiner symmetrizations, and so on. In particular, we prove that the sequence of iterative spherical Steiner symmetrizations of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>K</mi><mo>⊂</mo><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></mrow></semantics></math></inline-formula>, which follow sequences selected from a finite set of directions, converges to a spherical cap with the same measure as <i>K</i>, extending the result from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">R</mi><mi>n</mi></msup></semantics></math></inline-formula> to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi mathvariant="double-struck">S</mi><mi>n</mi></msup></semantics></math></inline-formula> on Steiner symmetrizations. It provides us with valuable insights for studying the relevant applications and conclusions of spherical Steiner symmetrizations.https://www.mdpi.com/2075-1680/13/11/751spherical geometryspherical Steiner symmetrizationouter Minkowski contentspherical distance
spellingShingle Youjiang Lin
Zhilang Deng
Spherical Steiner Symmetrizations
Axioms
spherical geometry
spherical Steiner symmetrization
outer Minkowski content
spherical distance
title Spherical Steiner Symmetrizations
title_full Spherical Steiner Symmetrizations
title_fullStr Spherical Steiner Symmetrizations
title_full_unstemmed Spherical Steiner Symmetrizations
title_short Spherical Steiner Symmetrizations
title_sort spherical steiner symmetrizations
topic spherical geometry
spherical Steiner symmetrization
outer Minkowski content
spherical distance
url https://www.mdpi.com/2075-1680/13/11/751
work_keys_str_mv AT youjianglin sphericalsteinersymmetrizations
AT zhilangdeng sphericalsteinersymmetrizations