TY - BOOK AU - Birkhoff, Garrett. AU - Rota, Gian-Carlo. TI - Ordinary differential equations SN - 9812530029 U1 - 515.35 PY - 2003/// CY - New York PB - John Wiley & Sons KW - Differential equations N1 - 1 FIRST-ORDER OF DIFFERENTIAL EQUATIONS 1 1. Introduction 2. Fundamental Theorem of the Calculus 3. First-order Linear Equations 4. Separable Equations 5. Quasilinear Equations; Implicit Solutions 6. Exact Differentials; Integrating Factors 7. Linear Fractional Equations 8. Graphical and Numerical Integration 9. The Initial Value Problem 10. Uniqueness and Continuity 11. A Comparison Theorem 12. Regular and Normal Curve Families 2 SECOND-ORDER LINEAR EQUATIONS 1. Bases of Solutions 2. Initial Value Problems 3. Qualitative Behavior; Stability 4. Uniqueness Theorem 5. The Wronskian 6. Separation and Comparison Theorems 7. The Phase Plane 8. Adjoint Operators; Lagrange Identity 9. Green's Functions 10. Two-endpoint Problems 11. Green's Functions, 3 LINEAR EQUATIONS WITH CONSTANT COEFFICIENTS 1. The Characteristic Polynomial 2. Complex Exponential Functions 3. The Operational Calculus 4. Solution Bases 5. Inhomogeneous Equations Contents 6. Stability 7. The Transfer Function 8. The Nyquist Diagram 9. The Greenes Function 4 POWER SERIES SOLUTIONS 1. Introduction 2. Method of Undetermined Coefficients 3. More Examples 4. Three First-order DEs 5. Analytic Functions 6. Method of Majorants *7. Sine and Cosine Functions *8. Bessel Functions 9. First-order Nonlinear DEs 10. Radius of Convergence 11. Method of Majorants, 12. Complex Solutions 5 PLANE AUTONOMOUS SYSTEMS 1. Autonomous Systems 2. Plane Autonomous Systems 3. The Phase Plane, 4. Linear Autonomous Systems 5. Linear Equivalence 6. Equivalence Under Diffeomorphisms 7. Stability 8. Method of Liapunov 9. Undamped Nonlinear Oscillations 10. Soft and Hard Springs 11. Damped Nonlinear Oscillations 12. Limit Cycles 6 EXISTENCE AND UNIQUENESS THEOREMS 1. Introduction 2. Lipschitz conditions 3. Well-posed Problems 4. Continuity *5. Normal Systems 6. Equivalent Integral Equation 7. Successive Approximation 8. Linear Systems 9. Local Existence Theorem Contents 10. The Peano Existence Theorem 11. Analytic Equations 12. Continuation of Solutions 13. The Perturbation Equation 7 APPROXIMATE SOLUTIONS 1. Introduction 2. Error Bounds *3. Deviation and Error 4. Mesh-halving; Richardson Extrapolation 5. Midpoint Quadrature 6. Trapezoidal Quadrature 7. Trapezoidal Integration 8. The Improved Euler Method 9. The Modified Euler Method 10. Cumulative Error Bound 226 8 EFFICIENT NUMERICAL INTEGRATION 1. Difference Operators 2. Polynomial Interpolation 3. Interpolation Errors 4. Stability 5. Numerical Differentiation; Roundoff 6. Higher Order Quadrature 7. Gaussian Quadrature 8. Fourth-order Runge-Kutta 9. Millie's Method 10. Multistep Methods 9 REGULAR SINGULAR POINTS 1. Introduction 2. Movable Singular Points 3. First-order Linear Equations 4. Continuation Principle; Circuit Matrix 5. Canonical Bases 6. RegularSingular Points 7. Bessel Equation 8. The Fundamental Theorem 9. Alternative Proof of the Fundamental Theorem 10. Hypergeometric Functions 11. The Jacobi Polynomials 12. Singular Points at Infinity 13. Fuchsian Equations 10 STURM-LIOUVILLE SYSTEMS 1. Sturm-Liouvilie Systems 2. Sturm-Liouville Series 3. Physical Interpretations 4. Singular Systems 5. Prufer Substitution 6. Sturm Comparison Theorem 7. Sturm Oscillation Theorem 8. The Sequence of Eigenfunctions 9. The Liouville Normal Form 10. Modified Priifer Substitution 11. The Asymptotic Behavior of Bessel Functions 12. Distribution of Eigenvalues 13. Normalized Eigenfunctions 14. Inhomogeneous Equations 15. Green's Functions 16. The Schroedinger Equation 17. The Square-well Potential 18. Mixed Spectrum 11 EXPANSIONS IN EIGENFUNCTIONS 1. Fourier Series 2. Orthogonal Expansions 3. Mean-square Approximation 4. Completeness 5. Orthogonal Polynomials 6. Properties of Orthogonal Polynomials 7. Chebyshev Polynomials 8. Euclidean Vector Spaces 9. Completeness of Eigenfunctions 10. Hilbert Space 11. Proof of Completeness APPENDIX A: LINEAR SYSTEMS 1. Matrix Norm 2. Constant-coefficient Systems 3. The Matrizant 4. Floquet Theorem; Canonical Bases APPENDIX B: BIFURCATION THEORY 1. What Is Bifurcation? 2. Poincare Index Theorem 3. Hamiltonian Systems 4. Hamiltonian Bifurcations 5. Poincare Maps 6. Periodically Forced Systems BIBLIOGRAPHY INDEX ER -