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math.CO2023★ 1 cited
M-convexity of Grothendieck polynomials via bubbling
Elena S. Hafner, Karola Mészáros, Linus Setiabrata +1
We introduce bubbling diagrams and show that they compute the support of the Grothendieck polynomial of any vexillary permutation. Using these diagrams, we show that the support of…
math.GT2023
Log-concavity of the Alexander polynomial
Elena S. Hafner, Karola Mészáros, Alexander Vidinas
The central question of knot theory is that of distinguishing links up to isotopy. The first polynomial invariant of links devised to help answer this question was the Alexander po…