Timothy Morris

X
ME

timothy.morris@csus.edu
  • Bachelors in Physics
  • Ph.D. in Mathematics

Education

Publications

Articles

2014

  1. DeBiasio, L.; Ferrara, M. and Morris, T. Improved degree conditions for 2-factors with k cycles in hamiltonian graphs. In Discrete Math., 320 (0): 51-54, 2014. pdf.. 
  2. Diemunsch, J.; Ferrara, M.; Graffeo, S. and Morris, T. On 2-factors With a Bounded Number of Odd Components. In Discrete Math., 323 (0): 35-42, 2014. pdf.. 

2013

  1. Busch, A. H; Jacobson, M. S; Morris, T.; Plantholt, M. J and Tipnis, S. K Improved Sufficient Conditions for the Existence of Anti-Directed Hamiltonian Cycles in Digraphs. In Graphs Combin., 29 (3): 359-364, 2013. pdf..  doi.. 

2012

  1. Ferrara, M.; Morris, T. and Wenger, P. Pancyclicity of 4-Connected, Claw-free, P10-free Graphs. In Journal of Graph Theory, 71 (4): 435-447, 2012. pdf.. 

In Preparation

  1. Carraher, J.; Ferrara, M.; Morris, T. and Santana, M. Characterizing Forbidden Subgraphs that Imply Pancyclicity in 4-connected, Claw-free Graphs.

Research Interests

My research interests lie in the field of graph theory. I am primarily interested in structural graph theory and the majority of my research has centered around cycle structures in graphs. I am also interested in extremal graph theory and finding extremal conditions to guarantee structrual properties. I also am interested in developing computational techniques for application to structural graph theory.

Work History

Teaching Experience

Fellowships

Research Presentations

  • Cycle Structures in Graphs , University of Wyoming, Laramie, WY Mar 25, 2014 (Invited)
  • Cycle Structures Beyond Hamiltonicity , University of Nebraska, Lincoln, NE Sep 17, 2013 (Invited)
  • Hamiltonicity and Other Cycle Structures , Illinois State University, Normal, IL Sep 5, 2013 (Invited)
  • On 2-factors With a Bounded Number of Odd Components , Middle Tennessee State University, Murfreesboro, TN May 25, 2013
  • Cloud Conveyor Systems , University of Colorado Denver, Denver, CO Mar 3, 2013
  • Forbidden subgraphs for disjoint matchings , Metropolitan State University of Denver, Denver, CO Apr 14, 2012
  • Forbidden subgraphs for pancyclicity and disjoint matchings , University of Nebraska, Lincoln, NE Mar 6, 2012 (Invited)
  • Forbidden subgraphs and pairs of disjoint 1-factors , University of Colorado Denver, Denver, CO Mar 3, 2012
  • Forbidden subgraphs for pancyclicity and disjoint matchings , University of Colorado Denver, Denver, CO Dec 5, 2011
  • Forbidden subgraphs for pancyclicity and disjoint matchings , Central China Normal University, Wuhan, China Jun 2, 2011 (Invited)
  • Pancyclicity of 4-connected, claw-free, P10-free graphs , University of Louisville, Louisville, KY May 14, 2011
  • Pancyclicity of 4-connected, claw-free, P10-free graphs , University of Colorado Denver, Denver, CO Apr 9, 2011
  • Pancyclicity of 4-connected, claw-free, P10-free graphs , University of Colorado Denver, Denver, CO Mar 5, 2011
  • Anti-directed hamilton cycles , Colorado State University, Fort Collins, CO Apr 17, 2010

Community Volunteer

  • Math on My Mind at University of Colorado Denver
    • Dec 13, 2010: Otho E. Stuart Middle School
    • Apr 5, 2011: High Peaks Elementary
    • Sep 26, 2011: Brighton High School
    • Nov 1, 2011: West Denver Prep
    • Dec 15, 2011: Bromley East Charter School
    • Apr 6, 2012: Bromley East Charter School
    • Apr 24, 2013: Teller Elementary School
    • Oct 25, 2013: Jefferson Academy
    • Jan 24, 2014: Bromley East Charter School

Previous Jobs

  • Engineering
    • Engineering Assistant, Caterpillar, Inc: Jun 1997-Jun 1999
    • CNC Programmer, Unit Tool and Mahine: Jan 2005-Jul 2005
  • Child Care
    • Camp Counselor, Camp Kearney: Summer 1999
    • Child Care Counselor, Kemmerer Village: Jul 2003-Dec 2003
  • Miscellaneous
    • Pharmacy Technician, Delavan Family Pharmacy: Jan 2003-Jul 2003
    • Construction Laborer, Wagenbach Builders: Oct 2004-Jan 2005
    • OTR Truck Driver, USA Truck: Jul 2005-Nov 2006