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Non-Degeneracy of 2-Forms and Pfaffian

초록/요약

In this article, we study the non-degeneracy of 2-forms (skew symmetric (0,2)-tensor) alpha along the Pfaffian of alpha. We consider a symplectic vector space Vwith a non-degenerate skew symmetric (0,2)-tensor omega, and derive various properties of the Pfaffian of alpha. As an application we show the non-degenerate skew symmetric (0,2)-tensor omega has a property of rigidity that it is determined by its exterior power.

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