Nadejda Kostadinova Ribarska

Nadejda Kostadinova Ribarska

Professor
DSc

Mathematical Analysis

Email: 
ribarska@fmi.uni-sofia.bg
Phone: 
+359 2 8161 518
Room: 
FMI-506
Office hours: 

Monday 16:00 - 17:00,
Tuesday 18:00 - 19:00

Publications

  1. P.S.Kenederov, N.K.Ribarska, Generic uniqueness of the solutions of “max min” problems, Lecture Notes in Economics and Mathematical Systems, 304, 41-48.
  2. P.S.Kenderov, N.K.Ribarska, Most of the two-person zero-sum games have unique solutions, Proceedings of the Centre for Mathematical Analysis, Australian National University, 20(1988), 73-82.
  3. N.K.Ribarska, Internal characterization of fragmentable spaces, C.R. Acad. Bulg. Sci., vol.40, no.12 (1987), 9-10.
  4. N.K.Ribarska, Internal characterization of fragmentable spaces, Mathematika, 34(1987), 243-257.
  5. N.K.Ribarska, A Radon-Nikodym compact which is not a Gruenhage space, C.R.Acad. Bulgare Sci., 41, no. 7(1988), 9-11.
  6. N.K.Ribarska, A note on fragmentability of some topological spaces, C.R.Acad. Bulgare Sci., 43(1990), 13-15.
  7. N.K.Ribarska, The dual of a Gateaux smooth Banach space is weak star fragmentable, Proceedings of the AMS, 114, no.4(1992), 1003-1008.
  8. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, On the general mountain pass principle of Ghoussoub-Preiss, Mathematica Balkanica, 5(1991), 350-358.
  9. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, Deformation lemma, Ljusternik-Schnirellmann theory and mountain pass theorem on C1-Finsler manifolds, Serdica Math. J. 21(1995), 239-266.
  10. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, Speculating about mountains, Serdica Math. J. 22(1996), 341-358.
  11. Ribarska N., Three space property for -fragmentability, Mathematika, 45(1998), 113-118.
  12. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, Saddle Point theorem without finite dimensional closed loop, C.R. Acad. Bulg. Sci., vol.51, no.11-12 (1998), 13-16.
  13. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, The intrinsic mountain pass principle, C.R. Acad. Sci., Paris, Ser.I, Math., vol.329, no.5 (1999), 399-404.
  14. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, The intrinsic mountain pass principle, Topological Methods in Nonlinear Analysis, vol.12, no.2 (1998), 309-322.
  15. N.K.Ribarska, On the property “countable cover by sets of small local diameter”, Studia Mathematica 140, 2 (2000), 99-116.
  16. N.K.Ribarska, Ts.Y.Tsachev, M.I.Krastanov, A note on “On a critical point theory for multivalued functionals and applications to partial differential inclusions”, Nonlinear Analysis 43 (2001), 153-158.
  17. N.K.Ribarska, V.D.Babev, A stability property for locally uniformly rotund renorming, to appear in Mathematika.
  18. Degiovanni M, Lucchetti R, Ribarska N., Critical point theory for vector valued functions, JOURNAL OF CONVEX ANALYSIS 9 (2): 415-428 2002

 

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