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Every question that is related to the Pfaffian polynomial and its traits.

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Pfaffian of several skew-linear transformations / matrices

\ ({\rm Pf}\ A)\cdot e_1\wedge\dots\wedge e_n$, where ${\rm Pf}\ A$ is the Pfaffian of the matrix $A$ whose elements are $a_{jk}$. … \ ({\rm Pf}\ A)$, and the Pfaffian of a matrix $A$ is easily computed numerically, in polynomial time, for large $n$. …
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