In this paper, a kind of inverse eigenvalue problem which is the recon-struction of real symmetric five-diagonal matrix by three eigenvalues and corre-sponding eigenvectors is proposed. The solvability of the problem ...
This paper considers the following problem: Given X,B∈R m×n , find A∈S E∩R m 0 such thatAX=B.where S E={A∈R m×m |‖AE-F‖=min, E,F∈R m×k }, R m 0={A∈R m×m |Y TAY≥0, Y∈R m×1 }, ‖·‖ is the Frob...
This note deals with the perturbation analysis of the inverse eigenvalue problems for Jacobi matrices. Following sun’s approach to study the sensitivity of the system Hessenberg form, new perturbation bounds are obta...
A criterion for the semipositive subdefiniteness of a 3× 3 block-matrix A is presented. applying the criterion, we give the general expression of left and right inverse eigenvalue problem of semipositive subdefinite ...