Matrices and kernels with positivity structures, and the question of entrywise functions preserving them, have been studied throughout the 20th century, attract

This volume contains the proceedings of the Conference on Complex Analysis and Spectral Theory, in celebration of Thomas Ransford's 60th birthday, held from May

This comprehensive reference, for mathematical, engineering and social scientists, covers matrix positivity classes and their applications.

This volume contains surveys of current research directions in combinatorics written by leading researchers in their fields.