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19922026
most citedHelical liquids and Majorana bound states in quantum wires

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147 papers · 1 filter

math.CO2023★ 1 cited

On product Schur triples in the integers

Letícia Mattos, Domenico Mergoni Cecchelli, Olaf Parczyk

Schur's theorem states that in any -colouring of the set of integers there is a monochromatic solution to , provided is sufficiently large. Abbott and Wang stud…

math.CO2023

A combinatorial characterization of binomial edge ideals

Davide Bolognini, Antonio Macchia, Giancarlo Rinaldo +1

Several algebraic properties of a binomial edge ideal can be interpreted in terms of combinatorial properties of its associated graph . In particular, the so-called cut se…

math.CO2023★ 14 cited

Celebrating Loday's Associahedron

Vincent Pilaud, Francisco Santos, Günter M. Ziegler

We survey Jean-Louis Loday's vertex description of the associahedron, and its far reaching influence in combinatorics, discrete geometry and algebra. We present in particular four…

math.CO2023★ 1 cited

The number of polyiamonds is supermultiplicative

Vuong Bui

While the number of polyominoes is known to be supermultiplicative by a simple concatenation argument, it is still unknown whether the same applies to polyiamonds. This article pro…

math.CO2023★ 4 cited

Weighted Ehrhart Theory: Extending Stanley's nonnegativity theorem

Esme Bajo, Robert Davis, Jesús A. De Loera +4

We generalize R. P. Stanley's celebrated theorem that the -polynomial of the Ehrhart series of a rational polytope has nonnegative coefficients and is monotone under contai…

math.CO2023★ 1 cited

A topological version of Hedetniemi's conjecture for equivariant spaces

Vuong Bui, Hamid Reza Daneshpajouh

A topological version of the famous Hedetniemi conjecture says: The mapping index of the Cartesian product of two -spaces is equal to the minimum of their $\mathbb Z/2…