2 papers
math.CO2026
Short Proofs in Algebraic and Enumerative Combinatorics
Colin Defant
We present several short proofs that resolve open problems from the algebraic and enumerative combinatorics literature. First, we consider the echelonmotion operator on modular lat…
math.CO2026
Weak Order on the MacNeille Completion of Bruhat Order
Colin Defant
Let be the MacNeille completion of the Bruhat order of a Coxeter group . We introduce an action of the -Hecke monoid of type on , which…