Third & Fifth All-Union Conferences on Mathematical Logic: Abstracts. Novosibirsk, 1974 and 1979 (Fifth marking Maltsev's 70th birthday). In Russian.

Третья Всесоюзная конференция по математической логике : тезисы докладов (23–27 июня 1974 г.) / Институт математики Сибирского отделения АН СССР ; ответственный за выпуск кандидат физ.-мат. наук Е. А. Палютин.
Новосибирск : Институт математики СО АН СССР, 1974. 238 страниц.
Мягкая обложка. Обычный формат. Тираж 600 экземпляров. 
Состояние хорошее: возрастная тонировка, на передней обложке слабое кольцевидное пятно.

Пятая Всесоюзная конференция по математической логике, посвящённая 70-летию академика А. И. Мальцева : тезисы докладов (Новосибирск, 27–29 ноября 1979 г.) / Институт математики Сибирского отделения АН СССР ; оргкомитет: Ю. Л. Ершов (председатель), С. Г. Дворников (учёный секретарь), С. И. Адян, С. С. Гончаров, В. Т. Дементьев, И. А. Лавров, О. Б. Лупанов, Е. А. Палютин, Д. М. Смирнов, А. Д. Тайманов, С. В. Яблонский ; ответственный за выпуск С. С. Гончаров.
Новосибирск : Институт математики СО АН СССР, 1979. 172 страницы.
Мягкая обложка. Обычный формат. Тираж 500 экземпляров. 
Состояние хорошее: на титульном листе частично неразборчивая владельческая помета чернилами.
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Third All-Union Conference on Mathematical Logic: Abstracts (23–27 June 1974) / Institute of Mathematics, Siberian Branch of the USSR Academy of Sciences; issue editor, Candidate of Physical and Mathematical Sciences E. A. Palyutin.
Novosibirsk : Institute of Mathematics, Siberian Branch of the USSR Academy of Sciences, 1974. 238 pp.
Paper wrappers. Standard format. Print run of 600 copies. 
Condition good: age-toning, a faint ring-shaped stain to front cover.

Fifth All-Union Conference on Mathematical Logic, Dedicated to the 70th Birthday of Academician A. I. Maltsev: Abstracts (Novosibirsk, 27–29 November 1979) / Institute of Mathematics, Siberian Branch of the USSR Academy of Sciences; organizing committee: Yu. L. Ershov (chairman), S. G. Dvornikov (scientific secretary), S. I. Adian, S. S. Goncharov, V. T. Dementyev, I. A. Lavrov, O. B. Lupanov, E. A. Palyutin, D. M. Smirnov, A. D. Taimanov, S. V. Yablonsky; issue editor S. S. Goncharov.
Novosibirsk : Institute of Mathematics, Siberian Branch of the USSR Academy of Sciences, 1979. 172 pp.
Paper wrappers. Standard format. Print run of 500 copies. 
Condition good: partially illegible owner's ink annotation to title page.

A pair of conference proceedings from the Soviet Union's premier recurring forum for mathematical logic, hosted by the Novosibirsk Institute of Mathematics. The third conference (1974) opens with a paper by V. N. Agafonov of Novosibirsk on bounded m-reducibility, a contribution to the study of algorithmic complexity degrees within computability theory. The fifth conference (1979) is of particular documentary interest as an explicit tribute to Anatoly Maltsev on the seventieth anniversary of his birth, ten years before the larger international conference held in his memory in 1989 (see companion lot). Its organizing committee unites the core of the Novosibirsk logic school established in this collection's other volumes -- Yuri Ershov as chairman, with Sergei Goncharov, Igor Lavrov, Evgeny Palyutin, and Dmitry Smirnov -- alongside major figures of Soviet discrete mathematics and cybernetics from Moscow: Sergei Adian, who with Pyotr Novikov resolved the restricted Burnside problem for large exponents, Oleg Lupanov, and Sergei Yablonsky. Together the two volumes trace the continuity of Soviet mathematical logic conferences across the 1970s, from the founding generation's ongoing work through to the explicit commemorations of Maltsev that would culminate in the major 1989 international gathering.