Pfaffian: A function associated with a skew-symmetric matrix, playing a role analogous to the determinant for antisymmetric matrices, important in random matrix theory and integrable hierarchies.

A matrix—a rectangular array of numbers—is like a locked chest ... Paras, A. T., & Salinasan, J. R. (2024). The ϕ polar decomposition when S is skew-symmetric. Linear Algebra and its ...