Vol. 85 (1993): Ann. Sofia Univ. Fac. Math and Inf.

Articles

• Examples of structures which do not admit recursive presentations

  Angel Ditchev

  3-11

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• On the average delay of the detection of cyclic loops

  Dimiter Skordev

  13-34

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• Some remarks on the strictly positive measures

  George Alexandrov

  35-38

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• A characterization of the complex space forms

  Grozio Stanilov, Veselin Videv

  39-42

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• Surjective characterizations of metrizable $LC^{\infty}$-spaces

  Vesko Valov

  43-47

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• On the geometry of subgroups of Suzuki group in finite non-miquelian inversive planes

  Chavdar Lozanov, Gergana Eneva

  49-54

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• A generalized Jacobi operator in the 4-dimensional Riemannian geometry

  Grozio Stanilov, Irina Petrova

  55-64

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• On a theorem of Hopf

  Nikolay Khadshiivanov

  65-69

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• On the (3,4)-Ramsey graphs without 9-cliques

  Nedjalko Nenov

  71-81

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• Factorizations of the groups of Lie type of Lie rank three over fields of 2 or 3 elements

  Tsanko Gentchev, Kerope Tchakerian

  83-88

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• Infinitesimal bendings of some classes of rotational surfaces with mixed curvature

  Ivanka Ivanova-Karatopraklieva

  89-106

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• $CLIP^{++}$: an object-oriented extension of a relational DBMS

  Pavel Azalov, Ventsislav Dimitrov

  107-119

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• Bifurcations of invariant manifolds in a model in rigid body dynamics

  Ognyan Christov

  123-129

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• Particular movements of rolling sphere on absolutely rough tore

  Sonia Deneva

  131-141

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• On the rough surface maximum temperature of a tribologic system

  Vasil Diamandiev

  143-159

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