Why the characteristic polynomial factors.
Sagan, Bruce (1995)
Séminaire Lotharingien de Combinatoire [electronic only]
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Sagan, Bruce (1995)
Séminaire Lotharingien de Combinatoire [electronic only]
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Michael Ruzhansky, James Smith (2005)
Journées Équations aux dérivées partielles
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Global time estimates of norms of solutions to general strictly hyperbolic partial differential equations are considered. The case of special interest in this paper are equations exhibiting the dissipative behaviour. Results are applied to discuss time decay estimates for Fokker-Planck equations and for wave type equations with negative mass.
Kostov, Vladimir (2002)
Serdica Mathematical Journal
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∗ Research partially supported by INTAS grant 97-1644 A real polynomial of one real variable is hyperbolic (resp. strictly hyperbolic) if it has only real roots (resp. if its roots are real and distinct). We prove that there are 116 possible non-degenerate configurations between the roots of a degree 5 strictly hyperbolic polynomial and of its derivatives (i.e. configurations without equalities between roots). The standard Rolle theorem allows 286 such configurations. To...
V. Kostin (1992)
Banach Center Publications
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The aspects of symmetrization of hyperbolic equations which will be considered in this review have their own history and are related to some classical results from other areas of mathematics ([12]). Here symmetrization means representation of an initial system of equations in the form of a symmetric t-hyperbolic system in the sense of Friedrichs. Some equations of mathematical physics, for example, the equations of acoustics, of gas dynamics, etc. already have this form. In the 70's...
Linhart, Johann, Ortner, Ronald (2005)
Beiträge zur Algebra und Geometrie
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Topuridze, N. (2003)
Georgian Mathematical Journal
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Farahmand, K., Hannigan, P. (1999)
International Journal of Mathematics and Mathematical Sciences
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The, Dennis (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Haas, Bertrand (2002)
Beiträge zur Algebra und Geometrie
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Emilija Nešović (2005)
Kragujevac Journal of Mathematics
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Kharibegashvili, S. (1994)
Georgian Mathematical Journal
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