Vol. 86 No. 1 (1994): Ann. Sofia Univ. Fac. Math and Inf.

Articles

• Lower bounds for the module of determinants of block diagonally matrices

  Jumah Zarnan, Milko Petkov

  5-9

  • PDF

• A lower bound for the number of vertices of some Ramsey graphs

  Nedjalko Nenov

  11-25

  • PDF

• On a generalization of the Jacobi operator in the Riemannian geometry

  Grozio Stanilov, Veselin Videv

  27-34

  • PDF

• A generalization of the Levi-Civitae connection on Riemannian manifolds

  Irina Petrova

  35-42

  • PDF

• On the three-spaces problem and extension of MLUR norms on Banach spaces

  George Alexandrov

  43-48

  • PDF

• On reiteration between families of Banach spaces

  Ljudmila Nikolova, Lars Erik Persson

  49-59

  • PDF

• On bounded truth-table and positive degrees

  Angel Ditchev

  61-71

  • PDF

• Factorizations of the groups $PSp_{6}(q)$

  Tsanko Gentchev, Elenka Gentcheva

  73-78

  • PDF

• Factorizations of the groups $PSU_{6}(q)$

  Tsanko Gentechev, Elenka Gentcheva

  79-85

  • PDF

• On the Ramsey (3,4)-multiplicity

  Nikolay Khadshiivanov, Ivan Pashov

  87-93

  • PDF

• A coincidence theorem for orthogonal maps

  Simeon Stefanov

  95-106

  • PDF