TY - BOOK AU - Simmons,George Finlay AU - Krantz,Steven G. TI - Differential equations: theory, technique, and practice SN - 0071254374 U1 - 515.35 21 PY - 2007/// CY - Boston PB - McGraw-Hill Higher Education KW - Differential equations KW - Textbooks N1 - Includes bibliographical references and index ; What is a differential equation? -- Second-order linear equations -- Qualitative properties and theorrtical aspects -- Power series solutions and special functions -- Fourier series: basic concepts -- Parial fifferential equations and boundary value problems -- Laplace transforms -- The calculus of variations -- Numerical Methods -- Systems of first-order equations -- The Nonlinear theory -- Dynamical systems ER -