Speciality: 01.01.02 (Differential equations, dynamical systems, and optimal control)
Birth date: 1.04.1947
E-mail: ,
Website: http://vm.mstuca1.ru/sotr/lychag.htm
Keywords: differntial equations.

Main publications:

• Local classification of nonlinear partial differential equations of the first order // Uspeshi Mat. Nauk, 1975, 30, 1, 101–171.
• Contact geometry and nonlinear partial differential equations of the second order // Uspeshi Math.Nauk, 1979, 34, 1, 137–165.
• Singularities of solutions, spectral sequences and normal forms of Lie algebras of vector fields // Proc. of Acad. Sci. USSR, 1987, 51, 3, 484–511.
• Braided differential operators and quantizations in ABC-categories // Competes Rendus Acad. Sci. Paris, Ser. 1, 1994, 318, 857–862.
• Homogeneous geometric structures and homogeneous differential equations // AMS Translations, Advances in Math. Sci., Ser. 2, 1995, 167, 143–164.

Publications in Math-Net.Ru

Presentations in Math-Net.Ru

Personal pages:

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• ISTINA
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Organisations:

• University of Tromsø, Tromsø
• V. A. Trapeznikov Institute of Control Sciences of Russian Academy of Sciences, Moscow
• International Center "Sophus Lie"
• Moscow Mathematical Society