Singular solutions to systems of conservation laws and their algebraic aspects

V. M. Shelkovich*. "Singular solutions to systems of conservation laws and their algebraic aspects." Banach Center Publications 88.1 (2010): 251-266. <http://eudml.org/doc/282108>.

@article{V2010,
abstract = {We discuss the definitions of singular solutions (in the form of integral identities) to systems of conservation laws such as shocks, δ-, δ’-, and $δ^\{(n)\}$-shocks (n = 2,3,...). Using these definitions, the Rankine-Hugoniot conditions for δ- and δ’-shocks are derived. The weak asymptotics method for the solution of the Cauchy problems admitting δ- and δ’-shocks is briefly described. The algebraic aspects of such singular solutions are studied. Namely, explicit formulas for flux-functions of singular solutions are computed. Though the flux-functions are nonlinear, they can be considered as “right” singular superpositions of distributions, thus being well defined Schwartzian distributions. Therefore, singular solutions of Cauchy problems generate algebraic relations between their distributional components},
author = {V. M. Shelkovich*},
journal = {Banach Center Publications},
keywords = {conservation laws; shock; Heaviside function; delta function; Runkine-Hugoniot conditions; nonlinear operation of distributions},
language = {eng},
number = {1},
pages = {251-266},
title = {Singular solutions to systems of conservation laws and their algebraic aspects},
url = {http://eudml.org/doc/282108},
volume = {88},
year = {2010},
}

TY - JOUR
AU - V. M. Shelkovich*
TI - Singular solutions to systems of conservation laws and their algebraic aspects
JO - Banach Center Publications
PY - 2010
VL - 88
IS - 1
SP - 251
EP - 266
AB - We discuss the definitions of singular solutions (in the form of integral identities) to systems of conservation laws such as shocks, δ-, δ’-, and $δ^{(n)}$-shocks (n = 2,3,...). Using these definitions, the Rankine-Hugoniot conditions for δ- and δ’-shocks are derived. The weak asymptotics method for the solution of the Cauchy problems admitting δ- and δ’-shocks is briefly described. The algebraic aspects of such singular solutions are studied. Namely, explicit formulas for flux-functions of singular solutions are computed. Though the flux-functions are nonlinear, they can be considered as “right” singular superpositions of distributions, thus being well defined Schwartzian distributions. Therefore, singular solutions of Cauchy problems generate algebraic relations between their distributional components
LA - eng
KW - conservation laws; shock; Heaviside function; delta function; Runkine-Hugoniot conditions; nonlinear operation of distributions
UR - http://eudml.org/doc/282108
ER -