"This exceptionally well-written research monograph ... presents material which is of profound importance and is meticulously chosen and organized. The mathematically precise and crisp presentation style would undoubtedly help the reader in acquiring a deep understanding of the subject. I believe that this monograph would not only be of great benefit to the research community actively engaged in variational analysis but would also encourage newcomers who are willing to learn the subject." (Akhtar A. Khan, SIAM Review, Vol. 62 (1), 2020)
"The book provides a self-contained, systematic and comprehensive exposition of keys concepts and principles of variational analysis, offering to specialists an updated view on the state of the art of a
fast-growing field of research ... . the rich anthology of exercises, guiding and stimulating the reader's comprehension, makes the book a usable text for teaching variational analysis to a large audience of graduate students, researchers and practitioners (not only in the mathematical sciences)." (Amos Uderzo, Mathematical Reviews, July, 2019)
"I am enthusiastic about its highly reader-friendly, well-structured presentation. It makes the book, apart from its mathematical contents, an aesthetic joy. ... I consider this monograph to be a highly instructive, well-structured and clearly written presentation of modern variational analysis from the perspective of nonconvex and dual generalized differential calculus. I do not hesitate to recommend this excellent work to everybody interested in this field of mathematics, to specialists as well as to young researchers." (René Henrion, Optimization Letters, Optimization Letters, Vol. 13, 2019)
"Written by an expert in the areas of variational analysis and optimization and based on his didactic experience, this is an excellent textbook. By the wealth of information contained in the second part of the book and in exercises,it can be also used by researchers in optimization theory and its applications as a reference text." (S. Cobzas, Studia Universitatis Babes-Bolyai Mathematica, Vol. 6 (04). 2018)
"This book is on the one hand a valuable tool for teaching and learning variational analysis, with exercises ranging from medium level to more difficult and numerous illustrative examples and figures. On the other hand, it represents a basis for future research in various fields of mathematics and its applications." (Radu Ioan Bot, zbMATH 1402.49003, 2019)
