Costel G. Bontea (Gabi)

Visiting Assistant Professor of Statistics

Office: Lovejoy 106 [ campus map ]
Box 5843

Phone: 207-859-5843
Fax: 207-859-5846
Mailing Address:
5843 Mayflower Hill
Waterville, Maine 04901-8858
Bontea, Costel G.


Ph.D., 2017, University of New Hampshire
M.Sc., 2010, University of Bucharest
B.Sc., 2008, University of Bucharest

Areas of Expertise

  • Hopf algebras
  • Tensor categories

Courses Currently Teaching

CourseCourse Title
MA434 ATopics in Abstract Algebra
SC212 AIntroduction to Statistics and Data Science
SC212 BIntroduction to Statistics and Data Science
SC212 CIntroduction to Statistics and Data Science
SC212 DIntroduction to Statistics and Data Science

Professional Information


Pointed braided finite tensor categories, with D. Nikshych, Tensor categories and Hopf algebras, 67-94, Contemp. Math., 728, Amer. Math. Soc., Providence, RI, 2019.

On the Brauer-Picard group of a finite symmetric tensor category , with D. Nikshych, Journal of Algebra 440 (2015), 187-218

Classifying bicrossed products of two Sweedler's Hopf algebras , Czechoslovak Mathematical Journal 64 (139) (2014), no. 2, 419–431

The classification of all crossed products H4 # k[Cn] , with A.-L. Agore and G. Militaru, Symmetry, Integrability and Geometry: Methods and Applications (SIGMA) 10 (2014), 049

Classifying bicrossed products of Hopf algebras , with A.-L. Agore and G. Militaru, Algebras and Representation Theory 17 (2014), no. 1, 227–264

Classifying coalgebra split extensions of Hopf algebras, with A.-L. Agore and G. Militaru, Journal of Algebra and Its Applications, Vol. 12, No. 5 (2013)


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