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JOURNALS // Trudy Instituta Matematiki i Mekhaniki UrO RAN // Archive

2015, Volume 21, Number 3

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Trudy Instituta Matematiki i Mekhaniki UrO RAN


Finite groups whose prime graphs do not contain triangles. I
O. A. Alekseeva, A. S. Kondrat'ev
3
On an inverse linear programming problem
G. A. Amirkhanova, A. I. Golikov, Yu. G. Evtushenko
13
Multicriteria boundary value problem in dynamics
A. S. Antipin, E. V. Khoroshilova
20
On the partition lattice of an integer
V. A. Baranskii, T. A. Koroleva, T. A. Senchonok
30
Elimination of inequalities from a facet description of a polyhedron
S. Bastrakov, N. Yu. Zolotykh
37
On semiproportional columns in the character tables of the groups $\mathrm{Sp}_4(q)$ and $\mathrm{Sp}_4(q)$ for odd $q$
V. A. Belonogov
46
On automorphisms of a distance-regular graph with intersection array $\{39,36,1;1,2,39\}$
I. N. Belousov
54
Classes of conjugate elements in finitary permutation groups
V. V. Belyaev
63
Definability of Hewitt spaces by the lattices of subalgebras of semifields of continuous positive functions with max-plus
E. M. Vechtomov, V. V. Sidorov
78
Asymptotically optimal approach to the approximate solution of several problems of covering a graph by nonadjacent cycles
E. Kh. Gimadi, I. A. Rykov
89
Polynomial-time approximation scheme for a problem of partitioning a finite set into two clusters
A. V. Dolgushev, A. V. Kel'manov, V. V. Shenmaier
100
On some sufficient conditions for the solvability and unsolvability of matrix correction problems for improper linear programming problems
V. I. Erokhin
110
On a variant of the simplex method for a linear semidefinite programming problem
V. G. Zhadan
117
On intersections of abelian and nilpotent subgroups in finite groups
V. I. Zenkov
128
Finite almost simple groups with prime graphs all of whose connected components are cliques
M. R. Zinov'eva, A. S. Kondrat'ev
132
On an optimal orbit transfer in a normal gravitational field
I. N. Kandoba, I. V. Koz'min, V. B. Kostousov, E. K. Kostousova, A. B. Lozhnikov, V. I. Pochinskii
142
Exact penalties in a problem of constructing an optimal solution of a differential inclusion
V. V. Karelin, A. V. Fominykh
153
A two-step problem of hedging a European call option under a random duration of transactions
A. I. Kibzun, V. R. Sobol'
164
On Cameron's question about the triviality in primitive permutation groups of the stabilizer of two points that is normal in the stabilizer of one of them
A. V. Konygin
175
On chief factors of parabolic maximal subgroups of the group ${}^3D_4(q^3)$
V. V. Korableva
187
On closeness of carpets of Lie type over commutative rings
S. K. Kuklina, A. O. Likhacheva, Ya. N. Nuzhin
192
The structure of quasifields of small even orders
V. M. Levchuk, P. K. Shtukkert
197
Semirings close to regular and their Pierce stalks
R. V. Markov, V. V. Chermnykh
213
On the finite prime spectrum minimal groups
N. V. Maslova
222
On extensions of strongly regular graphs with eigenvalue 4
A. A. Makhnev, D. V. Paduchikh
233
On the $p$-supersolvability of a finite factorizable group with normal factors
V. S. Monakhov, I. K. Chirik
256
A PTAS for the Min-$k$-SCCP in a Euclidean space of arbitrary fixed dimension
E. D. Neznakhina
268
Lexicographic regularization and duality for improper linear programming problems
L. D. Popov, V. D. Skarin
279
A control problem under incomplete information for a linear stochastic differential equation
V. L. Rozenberg
292
The finiteness of the number of symmetrical extensions of a locally finite tree by a finite graph
V. I. Trofimov
303
An exact algorithm with linear complexity for a problem of visiting megalopolises
A. G. Chentsov, M. Yu. Khachai, M. Yu. Khachai
309


© Steklov Math. Inst. of RAS, 2025