O'Malley, Robert E., Jr. — Singular Perturbation Methods for Ordinary Differential Equations. With 61 Illustrations.

New York / Berlin / Heidelberg / London / Paris / Tokyo / Hong Kong / Barcelona / Budapest, Springer-Verlag, 1991 24 × 16 cm, publisher’s hardcover, viii, 226, (2) pages, English, several notes in pencil but not disturbing, otherwise in fine condition, see picture. O’Malley (b. 1939), professor of applied mathematics at the University of Washington, presents a systematic treatment of singular perturbation methods for ordinary differential equations. The book develops both classical and modern approaches, emphasizing matched asymptotic expansions, boundary layer theory, and applications in applied mathematics and engineering. A key reference in the Springer series 'Applied Mathematical Sciences (volume 89)'.