Bulletin de l'Institute de Matématiques

Tome 15, 1974

C O N T E N T S

• Bajnov, D. D. Solution of some boundary value problems by the averaging method on the basis of the asymptotics built for the Cauchy's problem (Russian. Bulgarian and English summaries) 5−20
• Bilčev, S. I., D. T. Dočev, D. K. Pantelleev. Systems of two partial differential equations of first order (on conservation laws) (Russian. Bulgarian and German summaries) 21−26
• Krăstev, R. St. Stability of n-th order (Bulgarian. Russian and English summaries) 27−32
• Rusev, P. K. Some results about the distribution of zeroes of entire functions of the kind ∫₀¹f(t) cos tz dt and ∫₀¹f(t) sin tz dt (Bulgarian. Russian and English summaries) 33−62
• Lozanov, C. G. Minimal axiom systems defining a finite projective plane (Bulgarian. Russian and English summaries) 63−70
• Janev, N. M. Branching random processes with immigration (Bulgarian. Russian and English summaries) 71−88
• Genov, G. K. Varieties of groups with Malcev free operations (Russian. Bulgarian and English summaries) 89−105
• Cvetanov, M. Autonomous problems and duality (Russian. Bulgarian and English summaries) 107−112
• Cvetanov, M. Duality in problems of calculus of variations with fixed end-points (Russian. Bulgarian and English summaries) 113−125
• Ivanov, I. S. An application of the characteristics method for solving the hydraulic shock equations (Bulgarian. Russian and English summaries) 127−139
• Petrov, P. G. Interruptions' processing programmes and service programmess of the system MID-2 (Bulgarian. Russian and English summaries) 141−152
• Bărnev, P., M. Bărneva, P. Petrov. Operating system of MID-2 (Bulgarian. Russian and English summaries) 153−160
• Jannussis, A., P. Ktenas. On some properties of the operatirs of the generalized angular momentum (English. Bulgarian and Russian summaries) 161−171
• Radensky, A. A. Algorithms for searching and tabulation of successive in-coming information (Bulgarian. Russian and English summaries) 173−181
• Cane, V. R. The concept of accident proneness (English. Bulgarian and Russian summaries) 183−189
• Karadžov, G. E. About the interpolation method of "the means"for quasinormed spaces (Bulgarian. Russian and English summaries) 191−207
• Peev, S. An economic-mathematical model of the extended reproduction (Bulgarian. Russian and English summaries) 209−228
• Siskova, M. Z. Prediction of the reliability of devices by means of recognition of the images with regard to the evolution of the devices (Bulgarian. Russian and English summaries) 229−235
• Dimitrov, B. N. Asymptotic expansions of characteristics for queueing systems of the type M/G/1 (Russian. Bulgarian and English summaries) 237−263
• Bojadziev, P. G. On the interpolation of analytic functions by rational ones (Bulgarian. Russian and French summaries) 265−272
• Mosjagin, V. V. Differential equations with retarded argument in locally convex spaces (Russian. Bulgarian and English summaries) 273−283
• Starzinskii, V. M. Some applications of normal forms in non-linear oscillations (Russian. Bulgarian and English summaries) 285−290
• Genov, G. K. Existence of polynomial identities in the tensor product of Lie algebras (Russian. Bulgarian and German summaries) 291−300
• Tonov, I. K. On the product of varieties of associative algebras (Bulgarian. Russian and English summaries) 301−305
• Obretenov, A. An estimation of the speed of convergence of a sequence of iterative distribution functions (Bulgarian. Russian and English summaries) 307−311
• Cvetanov, M. Duality in variation problems with free end-points (Russian. Bulgarian and English summaries) 313−331
• Todorov, K. Orders of the second kind of cyclic semigroups (Bulgarian. Russian and English summaries) 333−341
• Mollov, T. G. On the Ulm's invariants of the group of normed units of the modular group-rings of primary Abelian groups (Bulgarian. Russian and English summaries) 343−348
• Stefanov, S. G. On a relation between connection in twodimensional Riemannian space and the inner connection of a tritissue (Bulgarian. Russian and English summaries) 349−357
• Korobejnik, Yu. F. On the representation of linear operators continuously operating in spaces of analytic functions and commuting with the differentiation operator (Russian. Bulgarian and English summaries) 359−388
• Nedev, S.J. Four theorems of Michael on continuous selections (Russian. Bulgarian and English summaries) 389−393
• Dimitrov, D. G. On some differential operators of second order (Russian. Bulgarian and English summaries) 395−403
• Gol'dberg, V. V. On the (n+1)-webs of multidimensional surfaces (Russian. Bulgarian and English summaries) 405−424

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