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A Variational Principle in Discrete Space-Time - Existence of Minimizers

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arxiv math-ph/0503069 v5 pith:FFQASJKZ submitted 2005-03-29 math-ph math.MP

A Variational Principle in Discrete Space-Time - Existence of Minimizers

classification math-ph math.MP
keywords existenceminimizersprinciplevariationalcollectiondiscreteformulateindefinite
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We formulate a variational principle for a collection of projectors in an indefinite inner product space. The existence of minimizers is proved in various situations.

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