Photo of Nicolai Vorobjov

Nicolai Vorobjov


  • 1 WEST 3.62


Research output per year

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Personal profile

Research interests

Held research and teaching positions at St Petersburg State University, Mathematical Steklov Institute (Russia), Cornell University and Pennsylvania State University (USA). Research interests are in Computer Algebra (in particular, in computational algebraic geometry) and other areas of Theoretical Computer Science.

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Research Output

Orthogonal tropical linear prevarieties

Vorobjov, N. & Grigoriev, D., 2018, Computer Algebra in Scientific Computing - 20th International Workshop, CASC 2018, Proceedings. Koepf, W., Seiler, W. M., Gerdt, V. P. & Vorozhtsov, E. V. (eds.). Springer, Vol. 11077. p. 187-196 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 11077 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Upper bounds on Betti numbers of tropical prevarieties

Grigoriev, D. & Vorobjov, N., 1 Apr 2018, In : Arnold Mathematical Journal. 4, 1, p. 127-136 10 p.

Research output: Contribution to journalArticle

Open Access
  • 2 Citations (Scopus)
    17 Downloads (Pure)

    On irreducible components of real exponential hypersurfaces

    Vorobjov, N. & Riener, C., 10 Sep 2017, In : Arnold Mathematical Journal. 3, 3, p. 423-443 20 p.

    Research output: Contribution to journalArticle

    Open Access
    88 Downloads (Pure)

    On topological lower bounds for algebraic computation trees

    Gabrielov, A. & Vorobjov, N., 1 Feb 2017, In : Foundations of Computational Mathematics. 17, 1, p. 61-72 12 p.

    Research output: Contribution to journalArticle

    1 Citation (Scopus)


    Bounding Betti Numbers of Sets Definable in O-Minimal Structures Over the Reals

    Author: Clutha, M., 1 Jan 2011

    Supervisor: Vorobjov, N. (Supervisor) & McCusker, G. (Supervisor)

    Student thesis: Doctoral ThesisPhD


    Nash equilibria in games and simplicial complexes

    Author: Egan, S., 1 Dec 2008

    Supervisor: Vorobjov, N. (Supervisor)

    Student thesis: Doctoral ThesisPhD