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1 Loewy's Results for Ordinary Differential Equations |
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1 | (20) |
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1.1 Basic Facts for Linear ODE's |
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1 | (2) |
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1.2 Factorization and Loewy Decomposition |
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3 | (8) |
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1.3 Solving Linear Homogeneous Ode's |
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11 | (5) |
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1.4 Solving Second-Order Inhomogeneous Ode's |
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16 | (4) |
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20 | (1) |
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2 Rings of Partial Differential Operators |
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21 | (40) |
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2.1 Basic Differential Algebra |
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21 | (2) |
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2.2 Janet Bases of Ideals and Modules |
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23 | (2) |
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2.3 General Properties of Ideals and Modules |
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25 | (5) |
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2.4 Differential Type Zero Ideals in Q(x, y)[ ∂x, ∂y] |
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30 | (2) |
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2.5 Differential Type Zero Modules over Q(x, y)[ ∂x,∂y] |
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32 | (2) |
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2.6 Laplace Divisors Lxm (L) and Lyn (L) |
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34 | (11) |
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2.7 The Ideals Jxxx and Jxxy |
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45 | (2) |
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2.8 Lattice Structure of Ideals in Q(x, y)[ ∂x, ∂y] |
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47 | (12) |
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59 | (2) |
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3 Equations with Finite-Dimensional Solution Space |
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61 | (20) |
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3.1 Equations of Differential Type Zero |
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61 | (2) |
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3.2 Loewy Decomposition of Modules M(0,2) |
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63 | (3) |
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3.3 Loewy Decomposition of Ideals J(0,2) and J(0,3) |
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66 | (7) |
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3.4 Solving Homogeneous Equations |
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73 | (2) |
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3.5 Solving Inhomogeneous Equations |
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75 | (3) |
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78 | (3) |
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4 Decomposition of Second-Order Operators |
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81 | (10) |
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4.1 Operators with Leading Derivative ∂xx |
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81 | (5) |
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4.2 Operators with Leading Derivative ∂xy |
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86 | (4) |
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90 | (1) |
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5 Solving Second-Order Equations |
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91 | (28) |
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5.1 Solving Homogeneous Equations |
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91 | (8) |
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5.2 Solving Inhomogeneous Second Order Equations |
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99 | (8) |
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5.3 Solving Equations Corresponding to the Ideals Jxxx and Jxxy |
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107 | (5) |
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5.4 Transformation Theory of Second Order Linear PDE's |
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112 | (5) |
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117 | (2) |
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6 Decomposition of Third-Order Operators |
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119 | (30) |
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6.1 Operators with Leading Derivative ∂xxx |
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119 | (11) |
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6.2 Operators with Leading Derivative ∂xxy |
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130 | (9) |
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6.3 Operators with Leading Derivative ∂xyy |
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139 | (8) |
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147 | (2) |
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7 Solving Homogeneous Third-Order Equations |
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149 | (28) |
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7.1 Equations with Leading Derivative Zxxx |
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149 | (7) |
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7.2 Equations with Leading Derivative Zxxy |
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156 | (9) |
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7.3 Equations with Leading Derivative Zxyy |
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165 | (7) |
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7.4 Transformation Theory of Third-Order Linear PDE's |
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172 | (3) |
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175 | (2) |
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8 Summary and Conclusions |
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177 | (4) |
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A Solutions to the Exercises |
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181 | (24) |
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B Solving Riccati Equations |
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205 | (8) |
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B.1 Ordinary Riccati Equations |
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205 | (1) |
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B.2 Partial Riccati Equations |
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206 | (2) |
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B.3 Partial Riccati-Like Systems |
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208 | (1) |
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B.4 First Integrals of Differential Equations |
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209 | (3) |
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212 | (1) |
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213 | (4) |
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215 | (2) |
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D Equations with Lie Symmetries |
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217 | (4) |
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219 | (2) |
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221 | (2) |
List of Notation |
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223 | (2) |
References |
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225 | (4) |
Index |
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229 | |