2 papers
math.RA2026
Linear maps preserving the matrix discriminant. An enhanced approach
Andrey Yurkov
The discriminant of a square matrix is defined as a discriminant of its characteristic polynomial. In this paper we provide a description of linear maps preserving the matrix discr…
math.CO2026
On the computations of the Cullis' determinant
Alexander Guterman, Andrey Yurkov
The Cullis' determinant is a generalization of the ordinary determinant for rectangular matrices. It is defined as the alternating sum of maximal minors of a given matrix. In this…