The calculus of variations in the large
by Marston Morse.
Providence, R.I. : American Mathematical Society, 1934.
ix, 368 págs. ; 26 cm.
Serie: American Mathematical Society Colloquium publications ; v. 18
Reimpresión de 1960.
"This monumental book is one of the most important and influentional works written in mathematics in this century. It had and is having a very profound impact in the development of the study of mathematical and physical sciences. The ideas contained in this masterpiece have had and are having a very decisive impact in areas such as differential and algebraic topology, differential geometry, differential equations and so on."—MathSciNet.
Reseña: MathSciNet, 98f:58070