Karsten Henckell

Professor of Mathematics & Computer Science

M.A., Ph.D., University of California, Berkeley
B.A., University of Hamburg

Recent Courses

Calculus I* Section 1 and Section 2
Context-Free Languages and Turing Machines
Discrete Math*
Intro to Artificial Intelligence
Theory of Computation
Selected Publications

Accepted for Publication
K Henckell, J. Rhodes, and B. Steinberg. An effective lower bound for group complexity of finite semigroups and automata, in Transactions of the American Mathematical Society, Vol. 364, Number 4 (April 2012), pp. 1815-1857

K. Henckell, J. Rhodes, and B. Steinberg. Aperiodic Pointlikes and beyond,  in International Journal of Algebra and Computation , Vol. 20, issue 2(2010), pp. 287-305.

K. Henckell, J. Rhodes, and B. Steinberg. A Profinite approach to Stable Pairs, in International Journal of Algebra and Computation , Vol. 20, issue 2(2010), pp. 269-285.

K. Henckell.  Stable Pairs, in International Journal of Algebra and Computation , Vol. 20, issue 2(2010), pp. 241-267.

K. Henckell.  Idempotent Pointlike Sets, in International Journal of Algebra and Computation (2004), vol. 14, part 5/6, pp 703-718.

K. Henckell and J.E. Pin.  Ordered Monoids and J - Trivial Monoids, in Algorithmic Problems in Groups and Semigroups (Birget et al, eds) (2000), pp 121-137.

K. HenckellBG = PG, Revisited, in Algebraic Engineering (Nehaniv and Ito, eds)  (1999), pp 416-426.

K. Henckell.  Type-I Subsemigroups, Revisited, in Algebraic Engineering (Nehaniv and Ito, eds) (1999), pp 390-398.

K. Henckell.  Product Expansions, in Journal of Pure and Applied Algebra, Vol. 101, pp 157-170 (1995).

B. Austin, K. Henckell, C. Nehaniv, J. Rhodes.  Subsemigroups and Complexity via the Presentation Lemma, in Journal of Pure and Applied Algebra Vol. 101, No 3, pp 245-289 (1995).

K. Henckell.  Type-I Subsemigroups, in Semigroups - Algebraic Theory and Applications to Formal Languages and Codes, Bonzini et  al. Eds., World Scientific (1993).

K. Henckell, and J. Rhodes.  Type-II Conjecture is True for J-Trivial Monoids, in Journal of Algebra, Vol 151, No. 1 (1992).

K. Henckell, S. W. Margolis, J.-E. Pin, and J. Rhodes.  Ash's Type II Theorem, Profinite Topology and Malcev Products, Part I, in International Journal of Algebra and Computation, Vol. 1, No. 4 (1991).

K. Henckell.  Block Groups = Power Groups, in Proceedings of the Monash Conference on Semigroups in Honor of G.B. Preston (1991).

K. Henckell and J. Rhodes.  The Theorem of Knast, the PG = BG and Type-II Conjectures, in Proceedings of the Berkeley Workshop on Monoids (1991).

K. Henckell.  The Type-II Conjecture: a Survey, in Proceedings of the Berkeley Workshop on Monoids (1991).

K. Henckell, and J. Rhodes.  Reduction Theorem for the Type-II Conjecture for Finite Monoids, in Journal of Pure and Applied Algebra 66 (1990).

K. Henckell, J. Rhodes, and S. Lazarus.  Prime Decomposition Theorem for Arbitrary Semigroups: general Holonomy Decomposition and Synthesis Theorem, in Journal of Pure and Applied Algebra 55 (1988), pp 127-172.

K. Henckell.  Pointlike Sets: The Finest Aperiodic Cover of a Finite Semigroup, in Journal of Pure and Applied Algebra 55 (1988), pp 85-126.

Contact Information

New College of Florida
Division of Natural Sciences
5800 Bay Shore Road
Sarasota, FL 34243-2197

khenckell@ncf.edu
(941) 487-4387

Office of the Provost
New College of Florida
5800 Bay Shore Road
Sarasota, Florida  34243

Phone: (941) 487-4200
Fax: (941) 487-4201
provost@ncf.edu