2 papers
math-ph2023
The Krein transform and semi-bounded extensions of semi-bounded linear relations
Josué I. Rios-Cangas
The Krein transform is the real counterpart of the Cayley transform and gives a one-to-one correspondence between the positive relations and symmetric contractions. It is treated w…
math-ph2019
The -adjacency operators and adjacency Jacobi matrix on distance-regular graphs
Josué I. Rios-Cangas
We deal in this work with a class of graphs, namely, the class of distance-regular graphs, in which on the basis of -adjacency operators, the adjacency operator of a distanc…