Serdica Bulgariacae mathematicae publicationes

Volume 10, 1984

Number 1

• Kamzolov, A. I. On the approximation of functions on the sphere Sⁿ. (in Russian) (pp. 3-10)
• Nikolaev, R. St. Identities of two variables in the second order matrix algebra over a field of characteristic zero. (in Russian) (pp. 11-18)
• Kovacheva, R. K. Uniform convergence of Pade approximants. General case. (pp. 19-27)
• Nikolova, D. B. Computation of a commutator identity in alternating groups on an electronic computer. (in Russian) (pp. 28-40)
• Georgiev, V. S. Wave fronts of solutions to boundary problems for symmetric dissipative systems. (pp. 41-48)
• Dzyadyk, V. K. Generalized moment problem and Pade approximation. (in Russian) (pp. 49-54)
• Levchenko, D. V. Bases of identities with an involution for second order matrix algebras over finite fields. (in Russian) (pp. 55-67)
• Velov, V. M. On the local properties of Bellman's function for nonlinear time-optimal control problems. (pp. 68-77)
• Ioakimidis, N. I. Application of interpolation formulas to the numerical solution of singular integral equations. (pp. 78-87)
• Iliev, G. L., U. Optiz. Comonotone approximation of |x| by rational functions. (pp. 88-105)
• Nieminen, J. On convexies and related congruences on graphs. (pp. 106-113)
• Vladimirov, V. S., I. V. Volovich. On the Diophantine trigonometric moment problem. (in Russian) (pp. 114-120)

Number 2

• Bankowski, J. CAA-a tool for data base description. (pp. 121-123)
• Bollman P., E. Konrad, H. Zuse. A technique for comparing term classifications. (pp. 124-127)
• Havel, I., I. Hojdar, P. Liebl. A software project with data base. (pp. 128-131)
• Koch, W. Applicarion of the batch oriented retrieval system MODOC 4. (pp. 132-135)
• Sarnecki, T. Application of CAA for data base description (pp. 136-141)
• Subeta, K. Inaccuracies in the mathematical bases of a relational model of databases and an attempt to correct them. (in Russian) (pp. 142-147)
• Dipotet, P. A model information retrieval systems. (pp. 148-152)
• Sergienko, I. V. Problems of the planning of computation in systems of collective computer use. (in Russian) (pp. 153-158)
• Valov, V. M. On the spaces which have a t-lattice of open mappings. (pp. 159-164)
• Dimov, G. D. An axiomatic characterization of the Stone duality. (pp. 165-173)
• Rangelov, Ts. V. Existence of wave operators for dissipative hyperbolic systems in the exterior of a moving body. (in Russian) (pp. 174-183)
• Ivanov, K. G. On the dependence of the differential properties of a function on its best algebraic approximation. (pp. 184-191)
• Pashov, I. Zh. Ramsey multiplicity in the case of 2-colorings of edges of a complete graph with fourteen vertices. (in Russian) (pp. 192-197)
• Shopov, P. J. The condensation method for problems of mechanics of incompressible fluids. (in Russian) (pp. 198-205)
• Andreev, A. S. Error estimates for numerical solutions of the Cauchy problem. (pp. 206-215)
• Miola, A. Mathematics and computer science. A case study: algebraic algorithms. (pp. 216-222)
• Smirnov, Yu. M. Equivariant shapes. (in Russian) (pp. 223-228)
• Burdun, A.; Mateev, A. Geometry of the field of isotropic vectors in three-dimensional pseudo- Euclidean space. (in Russian) (pp. 229-236)
• Warmuth, W. Einfach-korrelierte Abgangsintervalle in Verlustsystemen. (in German) (pp. 237-240)

Number 3

• Barneva, M. R. Information system for service a seismological center. (in Russian) (pp. 241-247)
• Kalinov, G. D., Kh. Z. Zlatanov, T. N. Todorov. Data retrieval by synthesis of complex expressions. (in Russian) (pp. 248-252)
• Hristov, Ts. A. Towards the creation of a comman user language in systems of administrative management. (pp. 253-257)
• Barnev, P. H. The MID-2 dispatcher system. (in Russian) (pp. 258-275)
• Dryanov, D. P. One-sided approximation with entire functions of exponential type. (pp. 276-286)
• Ivanova-Karatopraklieva, I. Rigidity conditions for some classes of surfaces of mixed type. I. (in Russian) (pp. 287-302)
• Dimitrov, I. Distributed systems as continuous functions. (pp. 303-311)
• Shopov, P. J. Isoparametric, weakly solenoidal finite elements for the numerical modeling of flows of incompressible fluid. (in Russian) (pp. 312-316)
• Abilov, V. A. On works of I. V. Tsenov in constructive function theory. (in Russian) (pp. 317-336)
• Jakubowski, Z. J., W. Majchrzak. On functions realizing the maxima of two functionals at a time. (pp. 337-343)

Number 4

• Ivanova-Karatopraklieva, I. Rigidity conditions for some classes of surfaces of mixed type. II. (in Russian) (pp. 345-352)
• Nedelcheva, M. D., I. G. Ginchev. Asymptotic estimates for the best approximation of strictly n-convex functions with Chebyshevian splines. (pp. 353-356)
• Khadzhiivanov, N., N. D. Nenov. On the number of 5-vertex independent sets for 13-vertex graphs without triangles. (in Russian) (pp. 357-366)
• Karadzhov, G. E. Asymptotics of traces for operators of the Toeplitz type. (in Russian) (pp. 367-375)
• Projnov, P. D. On the extreme and L² discrepancies of symmetric finite sequences. (pp. 376-383)
• Dimitrov, E. M., V. L. Chakalov. On an extremal problem. (in Russian) (pp. 384-396)
• Ivanov, R. P. A theorem concerning the alternative in the simple pursuit-evasion and the optimality on a half-space. (in Russian) (pp. 397-411)
• Mitov, K. V., V. A. Vatutin, N. M. Yanev. Critical Galton-Watson processes with decreasing immigration depending on the state of the process. (in Russian) (pp. 412-424)
• Singh, K. D., O. P. Srivastava. A note on a semi-invariant submanifold of a para-Sasakian manifold. (pp. 425-428)
• Georgiacodis, M. A. An application of Newton polygons. (pp. 429-432)
• Rykhlevskij, Ya. Studies concerning the distance between symmetric Euclidean tensors of the second rank. (in Russian) (pp. 433-441)
• Mal'tsev, Yu. A. Basic rank of varieties of associative algebras. (in Russian) (pp. 442-448)