Interests

  • Low-dimensional Topology 
  • Knots, Links, and 3-manifolds 
  • History of Mathematics
  • Mathematics and Music
  • Teacher Training in Mathematics
 

Jeff Johannes

Associate Professor of

Mathematics

South 326A
1 College Circle
Geneseo, NY 14454
585-245-5403
johannes@geneseo.edu

Jeff Johannes has been a member of the Geneseo faculty since 2001.

 

I will not update this page.  My actual website is here:  

 

 

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Faculty Information

Education

  • Ph. D, Indiana University, 1998
  • B. A., Cornell University, 1992

Research Interests

I am currently pursuing several research projects. The newest of the projects is an exploration of the role of Euclid's Fourth Postulate: "All right angles are equal." The older of these projects consists of investigating how the Casson-Walker-Lescop 3-manifold invariant changes when modifying the presenting link for a 3-manifold. This project has evolved into studying questions of the Ohtsuki invariants of rational homology spheres, and questions of the space of finite type invariants for links of three or more components.

Publications and Professional Activities

  • A Type 2 Polynomial Invariant of Links Derived from the Casson-Walker Invariant, Journal of Knot Theory and Its Ramifications, Vol. 8, No. 4 (1999) 491-504.
  • The Casson-Walker-Lescop invariant and link invariants, Journal of Knot Theory and Its Ramifications, Vol. 14, No. 4 (2005) 425-433.
  • Bandpass moves and the Casson-Walker-Lescop invariant, New York Journal of Mathematics, Vol. 10 (2004), 231-247.
  • Modern Geometry and the End of Mathematics, in MAA notes #68 From Calculus to Computers: Using the Last 200 Years of Mathematics History in the Classroom, 2005.

Affiliations

  • I am an active member of the Mathematical Association of America.
  • I am the liaison coordinator and the chair of the Seaway NExT Steering Committee.
  • I am also a member of the American Mathematical Society.