49 citations · 65 across the 7 of their papers we have counts for
8 papers
Universal Tutte polynomial
Olivier Bernardi, Tamas Kalman, Alex Postnikov
The Tutte polynomial is a well-studied invariant of graphs and matroids. We first extend the Tutte polynomial from graphs to hypergraphs, and more generally from matroids to polyma…
Inner products on the Hecke algebra of the braid group
Tamás Kálmán
We point out that the Homfly polynomial (that is to say, Ocneanu's trace functional) contains two polynomial-valued inner products on the Hecke algebra representation of Artin's br…
Meridian twisting of closed braids and the Homfly polynomial
Tamás Kálmán
Let be a braid on strands, with exponent sum . Let be the Garside half-twist braid. We prove that the coefficient of in the Homfly polynomial of the clos…
Rulings of Legendrian knots as spanning surfaces
Tamás Kálmán
Each ruling of a Legendrian link can be naturally treated as a surface. For knots, the ruling is 2-graded if and only if the surface is orientable. For 2-graded rulings of homogene…
Isotopies of Legendrian 1-knots and Legendrian 2-tori
Tobias Ekholm, Tamas Kalman
We construct a Legendrian 2-torus in the 1-jet space of (or of ) from a loop of Legendrian knots in the 1-jet space of . The differential graded algebra (DG…
Maximal Thurston-Bennequin number of +adequate links
Tamás Kálmán
The class of +adequate links contains both alternating and positive links. Generalizing results of Tanaka (for the positive case) and Ng (for the alternating case), we construct fr…