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Cohomological obstructions in locally variational field theories

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 نشر من قبل Marcella Palese
 تاريخ النشر 2013
  مجال البحث فيزياء
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We study cohomological obstructions to the existence of global conserved quantities. In particular, we show that, if a given local variational problem is supposed to admit global solutions, certain cohomology classes cannot appear as obstructions. Vice versa, we obtain a new type of cohomological obstruction to the existence of global solutions for a variational problem.



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