### Pliska Studia Mathematica Bulgarica

**Volume 2, 1981**

EDITOR: M. Gavrilov
Sofia, 1981

#### C O N T E N T S

**Dodunekov, S. **Residue codes. (Russian) (pp. 3-5)
**Berman, S., Mollov, T. **Splittability of bases and the isomorphism of group rings of Abelian groups. (Russian) (pp. 6-22)
**Petrov, N. **Finite groups with maximal dihedral subgroup. (Russian) (pp. 23-29)
**Genov, G. **Some Spechtian varieties of associative algebras. (Russian) (pp. 30-40)
**Popov, A. **On the Specht property of some varieties of associative algebras. (Russian) (pp. 41-53)
**Zeleva, S. **A presentation of semi-homogeneously partially ordered groups by defining inequalities. (Russian) (pp. 54-60)
**Davidov, L. **Dual supernilpotent radical closures of right ideals. (English) (pp. 61-68)
**Ivanov, P. **Radical closures of right ideals in alternative rings. (Russian) (pp. 69-76)
**Mollov, T. **The Ulm invariants of Sylow $p$-subgroups for group algebras of Abelian groups over a field of characteristic p. (Russian) (pp. 77-82)
**Petrov, N. **Some maximal subgroups of group *G2(F)* I (Russian). (pp. 83-88)
**Petrov, N. **Some maximal subgroups of group *G2(F)* II (Russian). (pp. 89-94)
**Popov, A. **Some properties of the multiplication of varieties of associative algebras. (Russian) (pp. 95-98)
**Hadjiivanov, N. **The strengthening of a theorem of Rademacher about graphs. (Russian) (pp. 99-102)
**Tchiripov, P., Siderov, P. **On the bases of identities of some varieties of associative algebras. (Russian) (pp. 103-115)
**Tchakaryan, K. **Finite groups with maximal subgroups of orders *p*^{n} and *pq*. (Russian) (pp. 116-118)
**Nenov, N., Hadjiivanov, N. **Extremal problems for graphs with filters. (Russian) (pp. 119-123)
**Ziyapkov, N. **Reduction theorems for universally consistent fields. (Russian) (pp. 124-129)
**Stojanov, I., Tonov, I. **Union and product of varieties of associative algebras. (Russian) (pp. 130-133)
**Hadjiivanov, N. **On the maximum of the number of triangles of a graph. (Russian) (pp. 134-142)
**Siderov, P. **Basis of identities of the algebra of triangular matrices over an arbitrary field. (Russian) (pp. 143-152)
**Ziyapkov, N. **Universally embedded Galois extensions. (Russian) (pp. 153-156)
**Tchakaryan, K. **Finite nonsolvable groups having a maximal subgroup of order *2p*. (Russian) (pp. 157-161)
**Tonov, I. **Just-non-weakly Noetherian varieties of associative algebras with unity. (Russian) (pp. 162-166)
**Avramov, L. **Poincare series of almost complete intersections of embedding dimension three. (English) (pp. 167-172)

Creator: Laboratory DSCH,
IS Department, 20.12.2011

Available online since: 20.04.2012