| Preface | p. v |
| Introduction to problems on singularity analysis | p. 1 |
| The classical singularity propagation theorem | p. 1 |
| Towards to modern theory | p. 9 |
| Singularity analysis for linear equations | p. 13 |
| Wave front set | p. 13 |
| Singularity propagation theorem for equations of principal type | p. 23 |
| Reflection of singularity on boundary | p. 30 |
| Further discussions | p. 43 |
| Generalized reflection of singularity on boundary | p. 43 |
| The operators with multiple characteristics | p. 46 |
| Singularity analysis for semilinear equations | p. 49 |
| Theorem of propagation of 2s weak singularity | p. 50 |
| Theorem on propagation of 3s weak singularity | p. 57 |
| Singularity interaction and singularity index | p. 62 |
| Propagation of conormal singularity | p. 73 |
| Interaction of conormal singularities | p. 80 |
| Extension of the concept of conormal singularities | p. 80 |
| Pseudo-composition | p. 86 |
| Theorem on interaction of conormal singularities | p. 87 |
| Reflection of conormal singularities | p. 90 |
| Propagation of singularities for fully nonlinear equations | p. 93 |
| Theorem of propagation of singularities for principal type equations | p. 93 |
| Propagation of conormal singularities for nonlinear equations | p. 101 |
| Propagation of strong singularities for nonlinear equations | p. 111 |
| Solutions with fan-shaped singularity structure of semilinear equations | p. 112 |
| Solutions with flower-shaped singularity structure of semilinear equations | p. 122 |
| Solutions with strong singularities of quasilinear equations (1-d case) | p. 131 |
| Solutions with strong singularities of quasilinear equations (m-d case) | p. 137 |
| Fan-shaped singularity structure | p. 137 |
| Flower-shaped singularity structure | p. 142 |
| Formation of shocks for quasilinear hyperbolic equations | p. 147 |
| The case of scalar equation | p. 147 |
| Two mechanism of blow-up of smooth solutions | p. 147 |
| Formation of a shock | p. 149 |
| Estimates of the solution in the neighborhood of the starting point of shock | p. 156 |
| The case of system | p. 159 |
| Background and conclusion | p. 160 |
| The property of the first approximate solution | p. 163 |
| Estimates and convergence of the sequence of approximate solutions | p. 169 |
| The case for full Euler system | p. 177 |
| Brief review on paradifferential operators | p. 181 |
| Diadic decomposition | p. 181 |
| Paradifferential operators and paralinearzation | p. 185 |
| Paracomposition | p. 189 |
| Bibliography | p. 191 |
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