Saint Petersburg Collaborators
 Alexander Nenashev
 Alexei Stepanov
 Alexander Sivatski
 Nikolai Vavilov
Papers and Preprints
 E. Sopkina On the sum of roots of a closed set, Zap. Nauchn. Sem. POMI,
289, 277286 (2002). (English translation to appear in J. Math. Sci.)
 V. Petrov Overgroups of Unitary Groups,
To appear in KTheory
 A. Nenashev Elements of K_1 via the triple
Gconstruction, preprint,
Bielefeld, 1998
 A. Nenashev
lambda^2 on K_1 in terms of double short exact sequences,
preprint, Bielefeld, 1999
 A. Nenashev
Categorical and simplicial constructions and dualization
in algebraic Ktheory, to appear in KTheory
 S. Gille, A. Nenashev
Products on triangular Witt groups, preprint

Stepanov A. V. and Vavilov N.
Length of commutators in classicallike groups over rings,
preliminary version,

Stepanov A. V.
Subgroups of a Chevalley group between two different rings, Announcement (2004)

Stepanov A. V.
Nonstandard subgroups between E_n(R) and GL_n(A),, to appear in
Algebra Colloquium

Stepanov A. V. and Sivatski A. S.
On the Word Length of Commutators in Gl_n(R),
KTheory, 1999, vol.17, issue 4, pp. 295302

Stepanov A. V.
Some constructions of exact sequences. Zapiski nauchnyh seminarov
POMI, vol. 272 (2000) (to be reprinted in : J. Rus. Math.)

Stepanov A. V.
On the normal structure of the general linear group over a ring,
Zapiski nauchnyh seminarov POMI, 1997, vol.236, (Russian)
English translation to appear in J.Russ.Math.

Stepanov A. V. and Vavilov N. A.
Decomposition of transvections: Theme with variations,
KTheory 19 (2000), 109  153

Sivatski A.S.
On unimodular rows over polynomial rings. Algebra Colloquium, 7:2 (2000),
p. 197204
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