3 papers
math.CO2023
On the Structure of Permutation Invariant Parking
Douglas M. Chen
We continue the study of parking assortments, a generalization of parking functions introduced by Chen, Harris, Martínez, Pabón-Cancel, and Sargent. Given cars of lengths $\mat…
math.CO2023
Lattice Path Delta Matroids
Douglas M. Chen, Mario Sanchez, John Veliz +1
We initiate the study of a type generalization of the lattice path matroids defined by Bonin, de Mier, and Noy. These are delta matroids whose feasible sets are in bijection…
math.CO2019
NIM with Cash: A Concrete Approach
Douglas Chen, William Gasarch
Let A be a finite subset of the naturals and let n be a natural. Let NIM(A;n) be the two player game in which players alternate removing stones from a pile with stones…