Orthogonal sets and polar methods in linear algebra: applications to matrix calculations, systems of equations, inequalities, and linear programming

ENRIQUE CASTILLO is a professor in the Department of Applied Mathematics and Computational Science at the University of Cantabria, Spain. During 25 years of research and teaching, he has published hundreds of papers as well as 18 books. ANGEL COBO is an associate professor in the Department of Applied Mathematics and Computational Science in the University of Cantabria. FRANCISCO JUBETE is a civil engineer and research assistant in the Department of Applied Mathematics and Computational Science at the University of Cantabria. ROSA EVA PRUNEDA is a research assistant in the Department of Appl