CSUF Algebra, Geometry and Topology Seminar

The CSUF Algebra, Geometry, and Topology (AGT) Seminar is an extension of the Geometry Seminar first established at CSUF in 2007.  It is intended as a venue for talks related to algebra, geometry and topology (broadly interpreted) and to be a place where faculty from many different universities can find a friendly and collaborative atmosphere.

2022 Organizer :

Dr. Tommy Murphy, Associate Professor of Mathematics tmurphy@fullerton.edu

Meeting Time:

The CSUF AGT typically meets Fridays 10AM-11AM in MH 480, and occasionally on Zoom.

Fall 2022 Schedule:

  • Friday, October 7, 10:00 am
    Title: "Quadrature of Cubic Segments".
    Speaker:  Dr. Tommy Murphy
    Abstract:  This will be a talk accessible to all undergraduates. In a great triumph of Greek mathematics,  Archimedes showed how to find the area of the region bounded between a parabola and a line,2000 years before calculus was invented. In joint work with M. Rathbun, we extend this to regions bounded between a cubic and a line. The proofs use only elementary calculus and trigonometry.
  • Friday, October 13, 3:00 pm
    Title: "Topology of the mapping class group".
    Speaker: Tatsunari Watanabe 
    Abstract: I n this talk, I will introduce the mapping class group of an oriented topological surface and its intrinsic geometric/topological property used in the study of integer solutions of polynomial equations.  The basic background topics including algebraic curves, fundamental groups, and symplectic representation will be briefly introduced. 
  • Friday, October 21, 10:00 am
    Title: "Distortion on Cartography".
    Speaker:  Dr. Tommy Murphy
    Abstract:  Differential geometry originally arose when Gauss was hired by King George III (who also ruled Hannover in Germany) to accurately map his Kingdom. I will explain some simple maps of Planet Earth and why constructing accurate maps is still a major problem today. The talk will be accessible to students .


Spring 2022 Schedule:

Friday, February 18, 9:00 am Simona Nistor, from University Al. I. Cuza Ia¸si
Friday, February 25, 9:00 am Martha Dussan Angulo, Universidade de Sao Paulo, Brazil
Friday, March 4, 9:00 am Oliver Dragicevic, University of Ljubljana, Slovenia
Friday, March 18, 9:00 am Vera Tonic, University of Rijeka, Croatia
Friday, March 25, 9:00 am Baisheng Yan, Michigan State University
Friday, April 1, 9:00 am Tommy Murphy, California State Univ. Fullerton
Friday, April 22, 9:00 am Nicoleta Voicu, Transylvania University, Braov,
Friday, May 6, 9:00 am Mehmet G¨ulbahar, Harran Universitesi, Turkey ¨
Friday, May 13, 9:00 am Thomas Mark, University of Virginia