Lagrangians and higher order tangent spaces.
Popescu, Marcela, Popescu, Paul (2010)
Balkan Journal of Geometry and its Applications (BJGA)
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Displaying similar documents to “The Helmholtz conditions for the difference equations systems.”
Lagrangians and higher order tangent spaces.
Yang-Baxter maps from the discrete BKP equation.
Kakei, Saburo, Nimmo, Jonathan J.C., Willox, Ralph (2010)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Noether’s theorem for a fixed region
Klaus Bering (2011)
Archivum Mathematicum
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We give an elementary proof of Noether's first Theorem while stressing the magical fact that the global quasi-symmetry only needs to hold for one fixed integration region. We provide sufficient conditions for gauging a global quasi-symmetry.
Tensorial version of the calculus of variations.
Casciaro, Biagio C., Konderak, Jerzy J. (2002)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
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Green's function of a centered partial difference equation.
Avery, R.I., Anderson, D.R. (2009)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Reductions of multicomponent mKdV equations on symmetric spaces of DIII-type.
Gerdjikov, Vladimir S., Kostov, Nikolay A. (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Numerical solutions to the Darboux problem with functional dependence.
Kamont, Z., Leszczyński, H. (1998)
Georgian Mathematical Journal
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Quenching time of solutions for some nonlinear parabolic equations with Dirichlet boundary condition and a potential.
Boni, Théodore K., Diby, Bernard Y. (2008)
Annales Mathematicae et Informaticae
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Boundary variational inequality approach in the anisotropic elasticity for the Signorini problem.
Gachechiladze, A., Natroshvili, D. (2001)
Georgian Mathematical Journal
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Enumeration of Hamiltonian circuits in rectangular grids.
Stoyan, Robert, Strehl, Volker (1995)
Séminaire Lotharingien de Combinatoire [electronic only]
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A particular solution of a Painlevé system in terms of the hypergeometric function .
Suzuki, Takao (2010)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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