Preface |
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ix | |
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xv | |
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xvii | |
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1 | (18) |
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1.1 Nonlinear reaction-diffusion-convection equations in mathematical modeling |
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1 | (2) |
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1.2 Main methods for exact solving nonlinear reaction-diffusion-convection equations |
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3 | (5) |
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1.3 Lie symmetry of differential equations: historical review, definitions and properties |
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8 | (11) |
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2 Lie symmetries of reaction-diffusion-convection equations |
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19 | (58) |
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2.1 Symmetry of the linear diffusion equation |
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19 | (2) |
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2.2 Symmetry of the nonlinear diffusion equation |
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21 | (8) |
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2.3 Equivalence transformations and form-preserving transformations |
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29 | (7) |
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2.3.1 The group of equivalence transformations |
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30 | (2) |
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2.3.2 Form-preserving transformations |
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32 | (4) |
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2.4 Determining equations for reaction-diffusion-convection equations |
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36 | (3) |
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2.5 Complete description of Lie symmetries of reaction-diffusion-convection equations |
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39 | (30) |
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2.5.1 Principal algebra of invariance |
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39 | (1) |
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2.5.2 Necessary conditions for nontrivial Lie symmetry |
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39 | (10) |
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2.5.3 Lie symmetry classification via the Lie-Ovsiannikov algorithm |
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49 | (11) |
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2.5.4 Application of form-preserving transformation |
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60 | (9) |
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2.6 Nonlinear equations arising in applications and their Lie symmetry |
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69 | (8) |
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2.6.1 Heat (diffusion) equations with power-law nonlinearity |
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69 | (2) |
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2.6.2 Diffusion equations with a convective term |
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71 | (2) |
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2.6.3 Nonlinear equations describing three types of transport mechanisms |
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73 | (4) |
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3 Conditional symmetries of reaction-diffusion-convection equations |
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77 | (58) |
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3.1 Conditional symmetry of differential equations: historical review, definitions and properties |
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77 | (6) |
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3.2 Q-conditional symmetry of the nonlinear heat equation |
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83 | (4) |
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3.3 Determining equations for finding Q-conditional symmetry of reaction-diffusion-convection equations |
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87 | (5) |
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3.4 Q-conditional symmetry of reaction-diffusion-convection equations with constant diffusivity |
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92 | (8) |
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3.5 Q-conditional symmetry of reaction-diffusion-convection equations with power-law diffusivity |
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100 | (11) |
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3.5.1 The case of proportional diffusion and convection coefficients |
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101 | (6) |
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3.5.2 The case of different diffusion and convection coefficients |
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107 | (4) |
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3.6 Q-conditional symmetry of reaction-diffusion-convection equations with exponential diffusivity |
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111 | (18) |
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3.6.1 Solving the nonlinear system (3.166) |
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118 | (7) |
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3.6.2 Solving the nonlinear system (3.169) |
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125 | (4) |
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3.7 Nonlinear equations arising in applications and their conditional symmetry |
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129 | (6) |
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4 Exact solutions of reaction-diffusion-convection equations and their applications |
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135 | (56) |
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4.1 Classification of exact solutions from the symmetry point of view |
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135 | (3) |
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4.2 Examples of exact solutions for some well-known nonlinear equations |
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138 | (5) |
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4.3 Solutions of some reaction-diffusion-convection equations arising in biomedical applications |
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143 | (13) |
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4.3.1 The Fisher and Murray equations |
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143 | (3) |
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4.3.2 The Fitzhugh-Nagumo equation and its generalizations |
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146 | (10) |
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4.4 Solutions of reaction-diffusion-convection equations with power-law diffusivity |
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156 | (20) |
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4.4.1 Lie's solutions of an equation with power-law diffusion and convection |
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156 | (3) |
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4.4.2 Non-Lie solutions of some equations with power-law diffusion and convection |
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159 | (17) |
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4.5 Solutions of reaction-diffusion-convection equations with exponential diffusivity |
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176 | (15) |
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4.5.1 Lie's solutions of an equation with exponential diffusion and convection |
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176 | (4) |
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4.5.2 Non-Lie solutions of an equation with exponential diffusion and convection |
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180 | (8) |
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4.5.3 Application of the solutions obtained for population dynamics |
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188 | (3) |
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5 The method of additional generating conditions for constructing exact solutions |
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191 | (28) |
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5.1 Description of the method and the general scheme of implementation |
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191 | (4) |
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5.2 Application of the method for solving nonlinear reaction-diffusion-convection equations |
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195 | (21) |
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5.2.1 Reduction of the nonlinear equations (5.10) and (5.11) to ODE systems |
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196 | (5) |
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5.2.2 Exact solutions of the nonlinear equations (5.10) and (5.11) |
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201 | (10) |
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5.2.3 Application of the solutions obtained for solving boundary-value problems |
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211 | (5) |
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5.3 Analysis of the solutions obtained and comparison with the known results |
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216 | (3) |
References |
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219 | (20) |
Index |
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239 | |