Convex dynamics in Hele-Shaw cells

We study geometric properties of a contracting bubble driven by a homogeneous source at infinity and surface tension. The properties that are preserved during the time evolution are under consideration. In particular, we study convex dynamics of the bubble and prove that the rate of the area change...

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Main Authors: Dmitri Prokhorov, Alexander Vasil'ev
Format: Article
Language:English
Published: Wiley 2002-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/S0161171202203142
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author Dmitri Prokhorov
Alexander Vasil'ev
author_facet Dmitri Prokhorov
Alexander Vasil'ev
author_sort Dmitri Prokhorov
collection DOAJ
description We study geometric properties of a contracting bubble driven by a homogeneous source at infinity and surface tension. The properties that are preserved during the time evolution are under consideration. In particular, we study convex dynamics of the bubble and prove that the rate of the area change is controlled by variation of the bubble logarithmic capacity. Next we consider injection through a single finite source and study some isoperimetric inequalities that correspond to the convex and α-convex dynamics.
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institution Kabale University
issn 0161-1712
1687-0425
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publishDate 2002-01-01
publisher Wiley
record_format Article
series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-68e844463c0e44a6a72554cb07c8b1212025-02-03T05:59:50ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252002-01-01311163965010.1155/S0161171202203142Convex dynamics in Hele-Shaw cellsDmitri Prokhorov0Alexander Vasil'ev1Department of Mathematics and Mechanics, Saratov State University, Saratov 410026, RussiaDepartamento de Matemática, UTFSM, Casilla, Valparaíso 110-V, ChileWe study geometric properties of a contracting bubble driven by a homogeneous source at infinity and surface tension. The properties that are preserved during the time evolution are under consideration. In particular, we study convex dynamics of the bubble and prove that the rate of the area change is controlled by variation of the bubble logarithmic capacity. Next we consider injection through a single finite source and study some isoperimetric inequalities that correspond to the convex and α-convex dynamics.http://dx.doi.org/10.1155/S0161171202203142
spellingShingle Dmitri Prokhorov
Alexander Vasil'ev
Convex dynamics in Hele-Shaw cells
International Journal of Mathematics and Mathematical Sciences
title Convex dynamics in Hele-Shaw cells
title_full Convex dynamics in Hele-Shaw cells
title_fullStr Convex dynamics in Hele-Shaw cells
title_full_unstemmed Convex dynamics in Hele-Shaw cells
title_short Convex dynamics in Hele-Shaw cells
title_sort convex dynamics in hele shaw cells
url http://dx.doi.org/10.1155/S0161171202203142
work_keys_str_mv AT dmitriprokhorov convexdynamicsinheleshawcells
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