Mathematica Balkanica

Vol. 15 (2001), Fasc. 1-2

P. G. Todorov. On the Hermite Method for the Factorization of Algebraic Polynomials	1
V. T. Videv. Two Curvature Operators in Riemannian and Lorentzian Geometry	7
Ch. Atakut, N. Ispir. The Order of Approximation by Certain Linear Positive Operators	25
P. S. Stanimirovich. Generalizations of the Condition Number	35
I. Brnetich, C. E. M. Pearce, J. Pecharich. On Difference Mappings Associated with Hadmard's Inequality	49
N. A. Soare. On the (g,φ, ξ, η)-Linear Connections	59
M. G. Karatopraklieva. On a Nonlocal Boundary Value Problem For an Equation of Mixed Type with Discontinuous Coefficients	67
R. Semerdjieva. On a Class of Hyperbolic Equations with Order Degeneration	75
T. Stoyanov. Some Extensions of a Problem of Biehler and Hermite	89
I. M. Mihailov, N. P. Ziapkov. Embedding Problems with Galois Groups of Order 16	99
G. P. Paskalev. Smooth and Classical Solution of Non-local Boundary Value Problem for a Class of High Order Partial Differential Equations	109
D. V. Dekov. Finite Complete Rewriting Systems for Semigroups and Groups	125
M. M. Konstantinov, P. Hr. Petkov. Condition an Error Estimates in the Solution of Lyapunov and Riccati Equations	139
G. Pataki. On the Extensions, Refinements and Modifications of Relators	155

Vol. 15 (2001), Fasc. 3-4

D. I. Vladeva. Maximum Likelihood Estimation of k-Dimensional Diffusion-Discrete Model	189
M. Dogan, A. T. Gurkanli. Multipliers of the space S_w(G)	199
R. Radovanovich. Approximation of a Fixed Point of Some Nonself Mappings	213
N. Ozalp, A. Chetinkaya. Expansion Formulas and Kelvin Principle for a Class of Partial Differential Equations	219
D. M. Claudio, H.-J. Dobner. A New Approach for Solving Equations with Interval Coefficients	227
M. Racheva. On Estimating of a Fourth-Order Differential Equations	239
L. Bernal-Gonzalez. A Note on Universal and Non-Universal Invertible Selfmappings	251
P. Danchev. Homogeneous Primary Components in Abelian Group Rings	261
N. Cengiz, A. A. Salimov. Complete Lifts of Derivations of Special Types to the Tensor Bundle	265
S. Kera. One Class of Submanifolds of Permutation Products of Complex Manifolds	275
N. E. Cho, S. Y. Woo, Sh. Owa. Argument Estimates of Certain Meromorphic Functions	285
P. M. Milichich. On the Orthogonal Projection and the Best Approximation of a Vector in a Quasi-Inner Product Space	297
I. A. Parvanova, P. E. Parvanov. Exact Constants in Estimation of the Error of the Quadrature Formulae of Simpson with the Averaged Moduli of Smoothness	303
L. Galue, S. L. Kalla, H. G. Khajah. Generalized Hermite Polynomials of Three Variables and Three Indices	317
P. G. Todorov. Errata, to: "A Representation of a Nonnegative…"	335
S. Markov, M. Krastanov. "MMSC'2001": Mathematical Modelling and Scientific Computations	337