Method of characteristics and first integrals for systems of quasi-linear partial differential equations of first order
Autor: | Chong-Kyu Han, Jong-Do Park |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Science China Mathematics. 58:1665-1676 |
ISSN: | 1869-1862 1674-7283 |
DOI: | 10.1007/s11425-014-4942-8 |
Popis: | Given a set of independent vector fields on a smooth manifold, we discuss how to find a function whose zero-level set is invariant under the flows of the vector fields. As an application, we study the solvability of overdetermined partial differential equations: Given a system of quasi-linear PDEs of first order for one unknown function we find a necessary and sufficient condition for the existence of solutions in terms of the second jet of the coefficients. This generalizes to certain quasi-linear systems of first order for several unknown functions. |
Databáze: | OpenAIRE |
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