Elmar Winkelnkemper

Horst Elmar Winkelnkemper is a tenured associate professor of mathematics at the University of Maryland, College Park. A graduate from Princeton University and the National Autonomous University of Mexico, Winkelnkemper is was born in Cologne, Germany but was raised in Mexico. Winkelnkemper joined the Maryland faculty in the 70's and currently teaches mathematics to undergraduate honors and graduate students. Since joining Elmar has published many papers. His field of expertise is in topology, manifolds, and string theory. In addition, his major contribution has been to open book decomposition and expanding on the work of Edward Witten in string theory.

References

*Home Page of H. E. Winkelnkemper [http://www.math.umd.edu/~hew/ Homepage]
*Horst Winkelnkempler "Artin Presentations of Complex Surfaces, Bol. Soc. Mat. Mexicana, v. dedicated to F. Gonzalez-Acuna, 2004." [http://www.math.umd.edu/~hew/papers/apellipticfinal.pdf]
*What is....an Artin Presentation? [http://www.math.umd.edu/~hew/papers/notices.pdf Preprint 2003]
* On the Action of $ heta^{n}$, I, Trans. Amer. Math. Soc. 206 (1975), 339-346.
* (with W.P. Thurston) On the Existence of Contact Forms, Proc. Amer. Math. Soc. 52 (1975), 345-347.
*(with R. Stong) Locally Free Actions and Stiefel-Whitney Numbers, II, Proc. Amer. Math. Soc. 66 (1977), 367-371.
* Twist maps, Coverings and Brouwer's Translation Theorem, Trans. Amer. Math. Soc. 267 (1981), 585-593.
* The graph of a foliation, Ann. Global Anal. Geom. I 1983, 51-75.
* The number of ends of the universal leaf of a Riemannian foliation, Differential Geometry, Progr. Math. 32, Birkhaeuser, 1983.
* A generalization of the Poincar'e-Birkhoff Theorem, Proc. Amer. Math. Soc. 102 (1988), 1028-1030.
* Fixed points with rotation as obstructions to topological transitivity, I, Topology 27 (1988), 393-400.
* An upper bound on $|dphi^{t}|$ for unit vector fields whose orbits are geodesics, J. Differential * Infinitesimal Obstructions to Weakly Mixing, Ann. Global Anal. Geom. 10 (1992), 1-11.
* The History and Applications of Open Books. Appendix in A.A. Ranicki, High-dimensional Knot Theory, Springer, 646 pp., 1998.
* Artin Presentations, I: Gauge Theory, 3+1 TQFT's and the Braid Groups, J. Knot Th. Ramifications 11 (2002), 223-275.
* Presentaciones Artinianas, Topologia 4D y la Fisica Moderna, Carta Informativa de la SMM, September 2002, 3-6.