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Computer algebra for geometric evolution equations

Computer algebra for geometric evolution equations
几何演化方程的计算机代数
批准号:
171126814
负责人:
Professor Dr. Oliver Schnürer
金额:
$0.0万
依托单位国家:
德国
项目类别:
Priority Programmes
财政年份:
2010
资助国家:
德国
项目状态:
已结题
起止时间:
2009-12-31 至 2014-12-31

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中文摘要
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英文摘要
Many challenging problems in geometry concern flow equations like e. g. mean curvature flow or Ricci flow. The behavior of solutions to such flow equations is often controlled as follows: For a geometrically significant quantity, the evolution equation is computed. It is proved that this quantity is monotone, i. e. a Lyapunov function. This allows to control solutions of the flow equation. The computation of evolution equations for prospective Lyapunov functions is purely algebraic but usually quite tedious. We propose to develop a program that does these algebraic computations in many different situations. We also wish to use algebraic and experimental methods to select prospective Lyapunov functions and to check, whether the resulting evolution equations allow to deduce monotonicities. Based on these Lyapunov functions we wish to provide a tool to systematically prove new theorems for geometric evolution equations. We want to focus on the behavior of solutions for large times or near singularities.
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Curvature flows without singularities
  • 批准号:
    336454636
  • 项目类别:
    Priority Programmes
  • 资助金额:
    $0.0万
  • 财政年份:
    2017
  • 负责人:
    Professor Dr. Oliver Schnürer
  • 依托单位:
Stability of non-compact manifolds under curvature flows
  • 批准号:
    42840189
  • 项目类别:
    Priority Programmes
  • 资助金额:
    $0.0万
  • 财政年份:
    2007
  • 负责人:
    Professor Dr. Oliver Schnürer
  • 依托单位:
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