AbstractIt is shown that for two real vectors x,y there is a totally positive matrix A such that Ax=y if and only if a certain refinement of a classical (sign) variation diminishing relationship between x and y is satisfied
AbstractIn this paper we study the matrix equation X=Q+A∗(X̂−C)−1A, where Q is an n×n positive defin...
Given linear matrix inequalities (LMIs) L1 and L2 it is natural to ask:(Q1) when does one dominate t...
AbstractThere is a concrete example of a positive linear map from M2 to M4 which is not decomposable...
AbstractIt is shown that for two real vectors x,y there is a totally positive matrix A such that Ax=...
Abstract. Assume that two sets of k vectors in R n are given, namely {x 1,...,x k} and {y 1,...,y k}...
Cataloged from PDF version of article.We present certain existence criteria and parameterizations fo...
We study interpolation by positive functions from a behavioural point of view. In particular, by con...
PhD (Mathematics), North-West University, Potchefstroom CampusThe class of positive real odd functio...
We present certain existence criteria and parameterizations for an interpolation problem for complet...
AbstractIt is shown that the reachability and the observability indices of appropriately defined pai...
AbstractA new “finite section” type theorem is used to show that the members of an interesting class...
It is shown that the reachability and the observability indices of appropriately defined pairs of ma...
Using a well-known form for the inverse of a symmetric Toeplitz matrix, some results in linear inter...
Using a well-known form for the inverse of a symmetric Toeplitz matrix, some results in linear inter...
AbstractA linear map Φ from Mn to Mm is completely positive iff it admits an expression Φ(A)=ΣiV∗iAV...
AbstractIn this paper we study the matrix equation X=Q+A∗(X̂−C)−1A, where Q is an n×n positive defin...
Given linear matrix inequalities (LMIs) L1 and L2 it is natural to ask:(Q1) when does one dominate t...
AbstractThere is a concrete example of a positive linear map from M2 to M4 which is not decomposable...
AbstractIt is shown that for two real vectors x,y there is a totally positive matrix A such that Ax=...
Abstract. Assume that two sets of k vectors in R n are given, namely {x 1,...,x k} and {y 1,...,y k}...
Cataloged from PDF version of article.We present certain existence criteria and parameterizations fo...
We study interpolation by positive functions from a behavioural point of view. In particular, by con...
PhD (Mathematics), North-West University, Potchefstroom CampusThe class of positive real odd functio...
We present certain existence criteria and parameterizations for an interpolation problem for complet...
AbstractIt is shown that the reachability and the observability indices of appropriately defined pai...
AbstractA new “finite section” type theorem is used to show that the members of an interesting class...
It is shown that the reachability and the observability indices of appropriately defined pairs of ma...
Using a well-known form for the inverse of a symmetric Toeplitz matrix, some results in linear inter...
Using a well-known form for the inverse of a symmetric Toeplitz matrix, some results in linear inter...
AbstractA linear map Φ from Mn to Mm is completely positive iff it admits an expression Φ(A)=ΣiV∗iAV...
AbstractIn this paper we study the matrix equation X=Q+A∗(X̂−C)−1A, where Q is an n×n positive defin...
Given linear matrix inequalities (LMIs) L1 and L2 it is natural to ask:(Q1) when does one dominate t...
AbstractThere is a concrete example of a positive linear map from M2 to M4 which is not decomposable...
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