4 papers
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…
Extremal problems on the -Seidel energy of graphs
Alexander Guterman, Shib Sankar Saha
Let be a graph with vertex set . The Seidel matrix of is an matrix whose diagonal entries are zero, -th entry is if and …
Characterizing uniform hypergraphs via Seidel matrix and Seidel energy
Alexander Guterman, Shib Sankar Saha
The Seidel energy is defined as the sum of the absolute values of the eigenvalues of the Seidel matrix of a hypergraph. We first characterize the k-uniform hypergraphs of fixed ord…
Hamiltonian Sets of Polygonal Paths in Assembly Graphs
A. Guterman, N. Jonoska, E. Kreines +2
We provide four equivalent combinatorial conditions for a simple assembly graph (rigid vertex graph where all vertices are of degree 1 or 4) to have the largest number of Hamiltoni…