Admissible sign patterns for certain classes of matrices
 
 
Description:  In qualitative and combinatorial matrix theory, a methodology based on the use of combinatorial information such as the signs of the elements of a matrix is very often useful in the study of some properties of matrices. A matrix whose entries are chosen from the set {+,-,0} is called a sign pattern matrix. In this talk, we will address the classes of N-matrices, P-matrices, M-matrices, P_0-matrices and inverse M-matrices and the related admissibility of sign pattern matrices problems.
Date:  2011-01-12
Start Time:   15:00
Speaker:  Cláudia Mendes Araújo (Dep. Matemática, Univ. Minho)
Institution:  -
Place:  Room 5.5
Research Groups: -Algebra and Combinatorics
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