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...
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 ...