This book makes a significant inroad into the unexpectedly difficult question of existence of Frchet derivatives of Lipschitz maps of Banach spaces into higher dimensional spaces. Because the question turns out to be closely related to porous sets in Banach spaces, it provides a bridge between descr[...]

This book captures the diversity and richness of writing as it relates to different forms of abilities, skills, competencies, and expertise. Psychologists, educators, researchers, and practitioners in neighboring areas are interested in exploring how writing develops and in what manner this developm[...]