- Associate Professor
- Lyman Briggs College & Department of Mathematics
- Michigan State University

Campus addresses:

Holmes Hall, Room W-32 | Wells Hall, Room C-305 |

Lyman Briggs College | Department of Mathematics |

Postal addresses:

Michigan State University | Michigan State University |

Lyman Briggs College | Department of Mathematics |

919 E. Shaw Lane, Room E35 | 619 Red Cedar Road, Room C305 |

East Lansing, MI 48825-3804 | East Lansing, MI 48824 |

E-mail address: rbell (at) math (dot) msu (dot) edu

I teach courses in both the Lyman Briggs College and the Department of Mathematics at Michigan State University. Below are links to my courses for spring 2015 and a link to some of my previous courses.

LB 118 Calculus I, Sections 009 and 010 |

LB 220 Calculus III, Sections 001 and 002 |

Current and previous courses |

My research interests belong primarily to the branch of mathematics called geometric group theory. This area lies somewhere in the intersection of the more broad fields of geometry, group theory, and topology. Areas of expertise include CAT(0) spaces, Coxeter groups, Artin groups, mapping class groups. In recent years, I have developed a strong interest in combinatorial games, especially the game of cops and robbers on graphs.

Curriculum Vitae (current as of September 2015)

*Combinatorial methods for decting surface subgroups in right- angled Artin groups*, ISRN Algebra, vol. 2011, Article ID 102029, 6 pages, 2011. doi:10.5402/2011/102029.*Injections of Artin groups*, joint with Dan Margalit, Commentarii Mathematici Helvetici, 82 (2007), no. 4, 725-751*Braid groups and the co-Hopfian property*, Journal of Algebra, 303 (2006), no. 1, 275-294*Three-dimensional FC Artin groups are CAT(0)*, Geometriae Dedicata, 113 (2005), 21-53

Geometric Group Theory |

Geometry & Topology at Michigan State University |

I am a co-PI on multiple REU grants shared by faculty in the Lyman Briggs College, the Department of Mathematics and the Departmen of Statistics. We have offered a summer REU here at MSU each summer since 2010. Below is a link to the REU web page.

Last updated on 09/03/2015