3 papers
math.AG2023
Toric supervarieties with one odd dimension
Eric Jankowski
In this paper we describe the notion of a toric supervariety, generalizing that of a toric variety from the classical setting. We give a combinatorial interpretation of the categor…
math.SP2019
Eigenvalue Paths Arising From Matrix Paths
Eric Jankowski, Charles R. Johnson
It is known (see e.g. [2], [4], [5], [6]) that continuous variations in the entries of a complex square matrix induce continuous variations in its eigenvalues. If such a variation…
math.SP2019
Spectra of Convex Hulls of Matrix Groups
Eric Jankowski, Charles R. Johnson, Derek Lim
The still-unsolved problem of determining the set of eigenvalues realized by -by- doubly stochastic matrices, those matrices with row sums and column sums equal to , has a…