The multiplicative Merino–Welsh conjecture for matroids

Let MM be a matroid with no loops or isthmuses, and let T(M;x,y)T(M;x,y) denote its Tutte polynomial. Multiplicative Merino–Welsh conjecture.

T(M;0,2)T(M;2,0)T(M;1,1)2.T(M;0,2)T(M;2,0)\geq T(M;1,1)^2.

This is presented as a seemingly stronger consequence of the additive Merino–Welsh conjecture, using direct sums and duality. Its status is not resolved in the supplied source.

Sources & referencesView supporting material

Primary source

Joseph P. S. Kung, “Inconsequential results on the Merino-Welsh conjecture for Tutte polynomials”, arXiv:2105.01825 (2021).

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