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July - September, 2011
Volume 13, Issue 3
On half conformally flat 4-dimensional Lie groups
Gladunova O. P., Rodionov E. D., Slavskii V. V.
Classification of half conformally flat Lie algebras of real four-dimensional
Lie groups with left-invariant Riemannian metrics is given.
Article (rus.) - [pdf] [zip-pdf]
Cyclic subgroups of second degree full linear group over a field of the zero characteristic
Zhemuhova M. Z., Pachev U. M.
A description of cyclic subgroups in a full linear group
G
L
2
(F)
over
any zero characteristic field
F
is given.
Article (rus.) - [pdf] [zip-pdf]
The asimptotics of a periodical solution of differential equation with great high-frequency terms
Ishmeev M. R.
The full asimptotics of a periodical solution for the systems of non-linear
differential equations, containing terms proportional to a degrees of frequency
is constructed.
Article (rus.) - [pdf] [zip-pdf]
Closed pairs
Koibaev V. A.
This is a study of closed pairs of abelian groups (closed elementary nets of
degree 2). If the elementary group
E(σ)
does not contain new elementary
transvections, then an elementary net
σ
(the net without the diagonal)
is called closed. Closed pairs we construct from the subgroup of a polynomial ring.
Let
R
1
[x]
- the ring of polynomials (of variable
x
with coefficients
in a domain
R
) with zero constant term. We prove the following result.
Theorem. Let A, B - additive subgroups of
R
1
[x]
.
Then the pair
(A,B)
is closed. In other words, if
t
12
(β)
or
t
21
(α)
is contained in subgroup
〈
t
21
(A),
t
12
(B)
〉
, then
β∈B
,
α∈A
.
Article (rus.) - [pdf] [zip-pdf]
On existence of the solution of parabolic problem on the
graph with a boundary conditions, containing derivatives on time
Kulaev R. Ch.
The mixed problem for the parabolic equation set on geometrical graph,
with boundary conditions containing a derivative on time is considered.
The theorem of existence of the solution of the boundary problem giving representation
of the solution in the form of circuit integral is established.
Article (rus.) - [pdf] [zip-pdf]
On representations of yangian of Lie superalgebra
sl(1,2)
Stukopin V. A.
The finite-dimensional irreducible representations of Yangian of
Lie Superalgebra
sl(1,2)
. The necessary and sufficiently conditions
of irreducibility of finite-dimensional representations are formulated and proved.
Article (rus.) - [pdf] [zip-pdf]
Maharam extension of a positive orthosymmetric bilinear operator
Tasoev B. B.
Maharam extension of a positive orthosymmetric bilinear operator in vector
lattices is constructed.
Article (rus.) - [pdf] [zip-pdf]
Valentin Vasil'evich Napalkov
(on his 70's anniversary)
Article (rus.) - [pdf] [zip-pdf]
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 conference: |
2011
¹1, ¹2
2010
¹1, ¹2, ¹3, ¹4;
2009
¹1, ¹2, ¹3, ¹4;
2008
¹1, ¹2, ¹3, ¹4;
2007
¹1, ¹2, ¹3, ¹4;
2006
¹1, ¹2, ¹3, ¹4;
2005
¹1, ¹2, ¹3, ¹4;
2004
¹1, ¹2, ¹3, ¹4;
2003
¹1, ¹2, ¹3, ¹4;
2002
¹1, ¹2, ¹3, ¹4;
2001
¹1, ¹2, ¹3, ¹4;
2000
¹1, ¹2, ¹3, ¹4;
1999
¹1, ¹2, ¹3, ¹4;
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