Last updated October 6, 2003
Geometry and algebra of partial differential equations
Horizontal cohomology and conservation laws.
Hamiltonian and symplectic structures.
Coverings in the category of differential equations.
Baecklund transformations. Biancchi formulas.
Differential fundamental group.
Questions and suggestions should go to J. S. Krasil'shchik,
josephk @ diffiety.ac.ru