Alexander Levichev

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Alexander Danilovich Alexandrov, the well-known ge-ometer, a member of the Russian Academy of Sciences and of several foreign academies, will turn 85. A. D. Alexandrov's seminal research papers cover areas ranging from quantum mechanics to geometry to philosophy of science. In particular, his innovative approach to foundations of space-time geometry is(More)
The paper deals with two simply connected solvable four-dimensional Lie groups M 1 and M 2. The first group is a direct product of the nilpotent Heisen-berg Lie group and the one-dimensional Lie group. The second one is a direct product of the two-dimensional non-abelian Lie group and the two-dimensional abelian Lie group. Applying Methods of [4, 6] we(More)
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