A new proof of indefinite propagation of singularities for a Hamilton-Jacobi equation

被引:1
作者
Stromberg, Thomas [1 ]
机构
[1] Lulea Univ Technol, Dept Engn Sci & Math, S-97187 Lulea, Sweden
关键词
Hamilton-Jacobi equation; Generalized characteristic; Propagation of singularities; PARTIAL-DIFFERENTIAL-EQUATIONS; BROKEN CHARACTERISTICS;
D O I
10.1007/s00028-016-0324-8
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study propagation of singularities for the Hamilton-Jacobi equation where is a positive definite quadratic form. Each viscosity solution is semiconcave, and it is known that its singularities move along generalized characteristics. We give a new proof of the recent result by Cannarsa et al. (Discrete Contin Dyn Syst 35:4225-4239, 2015), namely that the singularities propagate along generalized characteristics indefinitely forward in time.
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页码:895 / 903
页数:9
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