Obstructions, Extensions and Reductions. Some applications of Cohomology
classification
🧮 math-ph
math.MP
keywords
cohomologysomeapplicationsobstructionsclassesexplainextensionsf-theory
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After introducing some cohomology classes as obstructions to orientation and spin structures etc., we explain some applications of cohomology to physical problems, in special to reduced holonomy in M- and F-theory.
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