3 papers
math.NA2021
Eigenvalue embedding problem for quadratic regular matrix polynomials with symmetry structures
Tinku Ganai, Bibhas Adhikari
In this paper, we propose a unified approach for solving structure-preserving eigenvalue embedding problem (SEEP) for quadratic regular matrix polynomials with symmetry structures.…
math.NA2020
Preserving spectral properties of structured matrices under structured perturbations
Tinku Ganai, Bibhas Adhikari
This paper is devoted to the study of preservation of eigenvalues, Jordan structure and complementary invariant subspaces of structured matrices under structured perturbations. Per…
math.NA2020
Updating structured matrix pencils with no spillover effect on unmeasured spectral data and deflating pair
Bibhas Adhikari, Biswa Nath Datta, Tinku Ganai +1
This paper is devoted to the study of perturbations of a matrix pencil, structured or unstructured, such that a perturbed pencil will reproduce a given deflating pair while maintai…