CKV-type matrices with applications

Several applied linear algebra research areas, such as eigenvalue localizations, infinity norm estimations for matrix inverse, pseudospectra localizations, etc., are closely connected with special subclasses of nonsingular H-matrices. Many of them have already been investigated in details, but it seems that finding new such subclasses is far from completed. For example, in [22] , interchanging the quantifiers in the definition of the Dashnic-Zusmanovich matrices, led to a new class, benefits of which was shown in [22] , [13] , [11] . In this paper we will apply similar idea to CKV class (also known in the literature under the name Σ-SDD class), and show several benefits from the obtained new class, which we will call CKV-type matrices.