Classification of F algebras and noncommutative integration of the Klein-Gordon equation in Riemannian spacesO. L. Varaksin; V. V. Firstov; A. V. Shapovalov; I. V. Shirokov · 1993

Quadratic algebras and noncommutative integration of Klein-Gordon equations in non-steckel Riemann spacesO. L. Varaksin; V. V. Firstov; A. V. Shapovalov; I. V. Shirokov · 1995

Integration of the dirac equation, which does not presume complete separation of variables, in Stäckel spacesO. L. Varaksin; I. V. Shirokov · 1996

Quadratic algebras applied to noncommutative integration of the Klein-Gordon equation: Four-dimensional quadratic algebras containing three-dimensional nilpotent lie algebrasO. L. Varaksin; V. V. Firstov; A. V. Shapovalov; I. V. Shirokov · 1995