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A binary invariant of matrix mutation

  • Roger Casals

    University of California, Davis, USA
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Abstract

We construct a binary mutation invariant for skew-symmetric integer matrices. The invariant is not an integer congruence invariant for matrices of odd size. We provide examples of such congruent matrices with different values for the invariant.

Cite this article

Roger Casals, A binary invariant of matrix mutation. J. Comb. Algebra (2024), published online first

DOI 10.4171/JCA/99