• Smale Flows, St Louis University, Geometry and Topology Seminar, April 15, 2025.

• Geometric Lorenz Attactor
  Potpourri Seminar, Math Dept., SIUC
  Sept. 14, 2023

• Lens Spaces
  Potpourri Seminar, Math Dept., SIUC
  June 15, 2020

• Periodic orbits in a chaotic attractor introduced by Clark Robinson
  Joint work with Ghazwan Alhashimi
  53^rd Spring Topology and Dynamical Systems Conference
  University of Birmingham, Alabama, March 2019

• Knotted Periodic Orbits in Flows
  Harris-Stowe University, March 2018

• Periodic orbits in a chaotic attractor introduced by Clark Robinson
  Joint work with Ghazwan Alhashimi
  52^nd Spring Topology and Dynamical Systems Conference
  Auburn, Alabama, March 2018

• Realizing full n-shifts in simple Smale flows
  30^th Summer Conference on Topology and its Applications
  Galway Ireland, June 2015

• Realizing full n-shifts in simple Smale flows
  49^th Spring Topology and Dynamical Systems Conference
  May 2015, Bowling Green, Ohio

• Realizing full n-shifts in simple Smale flows
  29^th Summer Conference on Topology and its Applications
  July 23 2014, Staten Island, NYC

• Realizing full n-shifts in simple Smale flows
  48^th Spring Topology and Dynamical Systems Conference
  March 2014, Richmond VA

• Twistwise Flow Equivalence
  Tokyo Tech, February 13, 2013
  Osaka University, February 19, 2013

• Recent Developments in the Theory of Smale flows
  The 9^th East Asian School of Knots and Related Topics
  University of Tokyo, January 2013

• Recent Developments in the Theory of Smale flows
  46^th Spring Topology and Dynamical Systems Conference
  March 2012, Mexico City.

• Recent Developments in the Theory of Smale flows
  27^th Summer Conference on Topology and its Applications
  July 2012, Mankato, Minnesota

• Transverse Foliations to nonsingular Morse-Smale flows and Bott-integrable Hamiltonian systems
  24^th Summer Conference on Topology and Its Applications
  July 14-17 2009, Brno University of Technology, Czech Republic

• Transverse Foliations to nonsingular Morse-Smale flows and Bott-integrable Hamiltonian systems
  Peking University, Beijing, PRC, 2009.

• Flows
  Show Me Undergraduate Math Conference
  Southeast Missouri State University, Cape Girardeau, MO, Novemebr 4, 2006

• Weighted Flow Equivalence for Shifts of Finite Type
  Pan-American Advanced Studies Institute on Differential Equations and Nonlinear Analysis
  Universidad de Chile, Santiago, Chile, January 2005.

• Transverse Foliations to nonsingular Morse-Smale flows and Bott-integrable Hamiltonian systems and Contact Structures
  40^th Annual Sprint Topology and Dynamical Systems Conference
  March 22-24, 2006, University of North Carolina at Greensboro. (Upside-down.)

• G-weighted flow equivalence
  University of Warwick, July 8, 2003
  Joint with Mike Boyle

• Twistwise Flow Equivalence
  George Mason University, November, 2002.

• Twist-wise Flow Equivalence
  Oct 2002 at Univ of Maryland, College Park, and
  Spring 2003 at Univ of North Texas Denton with an added intro on symbolic dynamics.

• A new approach to symbolic dynamics: Based on Mike Boyle's paper Positive K-Theory and Symbolic Dynamics
  Given at SIUC sometime in Summer 2002

• Alexander Polynomials Multiply under Connected Sums: A Dynamics Proof
  AMS Special Session on Knots and 3-Manifolds, Buffalo, NY, April, 1999.

• Invariants of Twist-Wise Flow Equivalence
  AMS Joint Meeting Baltimore, MD, January 1998

• A Zeta Function for Positive Templates, Texas Tech, May, 1994.

See my vita for a complete listing.