Bulletin de l'Institute de Matématiques

Tome 13, 1972

C O N T E N T S

• Lyudskanov, A. On the "zero elements" in case of a machine translation and automatic processing of natural languages (Bulgarian. Russian and English summaries) 5−62
• Borisov, A. Canonical frame of a line complex in three-dimensional space with an absolute of two real planes and two real points on the curve of their intersection (Bulgarian. Russian and German summaries) 63−72
• Nosov, V. R. On a class of differential equations with deviating argument (Russian. Bulgarian and English summaries) 73−83
• Obretenov, A. A queueing system of the type Gl/G/1 where orders are lost when reaching a busy device (Bulgarian. Russian and English summaries) 85−92
• Obretenov, A., M. Krâsteva. A system of the type "k from n" with renewal and exponential life time duration (Bulgarian. Russian and English summaries) 93−98
• Bojanov, B. On the connection between the variation and modulus of non-monotonicity of a function (Bulgarian. Russian and English summaries) 99−103
• Bârnev, P., V. Tomov, M. Bârneva. Transformation of the syntax of some algorithmic languages in connection with the creation of syntactically controllable translators (Bulgarian. Russian and English summaries) 105−124
• Denčev, R. On the residual spectrum of a singular integral operator (Russian. Bulgarian and English summaries) 125−130
• Petkov, M. On one method for matrix inversion and for the solution of linear systems (Bulgarian. Russian and English summaries) 131−139
• Bârneva, M., S. Bâčvarov A statistical study of ALGOL-60 (Bulgarian. Russian and English summaries) 141−149
• Arnaudov, D. Main characteristics of the system ÀËÃÝÌ-ÑÒ3 to automation of programming and its applicability to the solution of non-linear problems (Bulgarian. Russian and English summaries) 151−157
• Bârnev, P., D. Dobrev, R. Kirkova. A study of some frequences in the written Bulgarian (Bulgarian. Russian and English summaries) 159−165
• Bârnev, P., V. Tomov, D. dobrev, K. Ivanov, G. Kulekov An aggorithm and a programme for the game "XO"(Morphion) (Bulgarian. Russian and English summaries) 167−180
• Bârnev, P., A. Ahegukjan. A check of the logical structure of programmes written for Minsk-2 (Bulgarian. Russian and English summaries) 181−191
• Gerov, G., N. Stojanov. On one problem of the development control (Russian. Bulgarian and English summaries) 193−198
• Bârnev, P., D. Toshkov. A system for symbolic programming for Minsk-2 (Russian. Bulgarian and English summaries) 199−210
• Srebrev, S., T. Veličkov, V. Lazarov, K. Bojanov. A system for automatic drawing of functional circuits (Bulgarian. Russian and English summaries) 211−225
• Gičev, T. On the realization of time optimal linear control (Bulgarian. Russian and English summaries) 227−246
• Bovdi, A. A., S. V. Mihovski. Idempotents in crossed products (Bulgarian. Russian and English summaries) 247−263
• Hitov, H. Finding the number of corridors in a rectangle (Bulgarian. Russian and English summaries) 265−276
• Tsvetanov, M. Duality in problems of the calculus of variations and optimal control (Bulgarian. Russian and English summaries) 277−317

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