Service

Editorial Positions

• Associate editor, SIAM Journal on Applied Dynamical Systems , 2010 - Present
• Editor in Chief, SIAM Journal on Applied Dynamical Systems, 2018 -2023
• Section Chief Editor, Research Spotlights Section, SIAM Review, 2014 - 2017
• Associate editor, Research Spotlights Section of the SIAM Review , 2012 - 2014
• Editor-in-Chief, DSWeb Magazine , 2008 - 2010
• Section Chief Editor, Tutorials, DSWeb, 2004 - 2010

Professional Positions

• SIAM Council Representative to the Board, 2023 - 2025
• SIAM Committee on Strategic Intiatives, 2023 - 2024
• Member of the SIAM Council, 2022 - 2024
• Chair of J. D. Crawford Prize Selection Committee, Spring 2019
• Program Director, SIAM activity group on dynamical systems, 2016
• SIAM Dynamical Systems Activity Group Liason to SIAM News, 2008 - 2016
• Member of the development committee for the Juergen Moser Prize, SIAG-DS 2012 - 2015
• Member AWM Policy and Advocacy Committee 2010 - 2012
• Hiring committee for postdocs, Institute for Mathematics and Its Applications, Minnesota, Spring 2012
• AWM representative to the Coalition of National Science Funding, 2010 - 2011
• AWM Travel Grant Selection Committee, 2009 - 2010
• Secretary/Treasurer of the SIAM Activity Group on Dynamical Systems (SIAG/DS), 2008 - 2010
• AWM representatives for “Promising Recruitment and Retention Strategies to Improve Diversity in STEM,” MAA Congressional briefing, Washington, DC September 1, 2009
• Organizer, DSWeb student Tutorials contest (2 times), 2007-2009
• Poster competition judge, SIAM Conference on Applications of Dynamical Systems, Snowbird, UT May 23, 2009
• Poster competition judge, Joint Mathematics Meetings, Washington, DC, January 10, 2009
• SIAM Activity Group on Life Sciences nominating committee, 2008
• Poster competition judge, SIAM Conference on Applications of Dynamical Systems, Snowbird, UT May 23, 2007
• Methods of Computational Neuroscience, Marine Biology Laboratory, Woods Hole, MA August, 2004

Conferences

• Organizer for “Computer Assisted Proofs in Applied Mathematics,” SLMath Summer Graduate School, Berkeley CA, July 7 - July 18, 2025
• Organizing Committee for “Computer Assisted Proof in Nonlinear Analysis,” Centre de Recherches Mathématiques, Montreal, September 9- 13, 2024
• Tori and Chaos in Near-Hamiltonian Dynamics with Applications, SIAM Conference on Applied Dynamical Systems, Portland, OR (with Jim Meiss and Dan Scheeres), May 14- 15, 2023
• Advances in Nonlinear Dynamics Minisymposium, ICIAM, Tokyo Japan (with Jay Mireles James), August 20- 25, 2023
• Computing Quasiperiodic Tori for Hamiltonian Systems: Applications to Celestial Mechanics, SIAM Conference on Applications of Dynamical Systems, Virtual (with Jim Meiss and Daniel Scheeres), May 21- 25, 2021
• Organizing Committee Member for SIAM Conference on Applications of Dynamical Systems (DS19), Snowbird, UT, May 21- 25, 2019
• Numerical Measures of Chaos and Regularity, SIAM Conference on Applications of Dynamical Systems, Snowbird, UT (with Jim Meiss), May 21- 25, 2019
• Organizing Committee, Midwest/McGehee Dynamical Systems Conference, Minneapolis, MN , November 1- 4, 2018
• Organizer of 2017 SIAM Conference on Applications in Dynamical Systems (DS17), Snowbird, Utah (with Martin Wechselberger), May 21-25, 2017
• Career Options for Women in Math, Institute for Mathematics and it Applications, (with Cheri Shakiban), March 4- 5, 2013
• SIAG/DS Minisymposium Track (consisting of six minisymposia), at the ICIAM 2011, Vancouver BC Canada , July 18-22, 2011
• Applied Topological Dynamics, Minisymposium, (as part of the track organized above), ICIAM, Vancouver BC, Canada, July 18-22, 2011
• Scientific Organizing Committee Member, SIAG/DS, SIAG/APDE and Spanish Math Societies Joint Conference, Barcelona, Spain , May 31 - June 4, 2010
• Topological Methods for Applied Dynamics, Special Session, SIAM Conference on Applications of Dynamical Systems, Snowbird, UT (with Jim Yorke), May 21-25, 2009
• Applications of a geometric approach to chaotic dynamics, Special Session, AMS Central Sectional Meeting, Macalester College, St. Paul, MN, (with Judy Kennedy and Jim Yorke), April 2- 3, 2009
• Applied Dynamical Systems Minisymposium, SIAM Annual Meeting, San Diego, CA, July 2- 4, 2008
• CSUMS Workshop, George Mason, Fairfax, VA (with Sarah Day), April 20-21, 2008
• Applied Topological Dynamics Special Session, SIAM Conference on Applications of Dynamical Systems, Snowbird, UT, May, 2007 (with Judy Kennedy) May 21- 25, 2007

Department Service

• Graduate Director, GMU Dept of Math. Sciences, August 2023 - Present
• GMU Graduate Committee, 2000 - 2010, 2022 - Present
• Curator of the Mathematical Sciences art exhibit, Exploratory Hall display case, 2014 - present
• Preliminary Exam Committee: Algebra, Linear Analysis, Numerical Analysis, Ordinary Differential Equations, 2006- present
• Teaching peer review, April, 2022
• Hiring committee, 2021 - 2022
• Recruitment and retention of minority graduate students, 2020 - 2021
• Chair hiring committee (3 tenure track positions), 2020 - 2021
• Teaching peer reviews, 2021
• Course coordinator Math 213 (Spring), Spring 2020
• Network Science Cluster Hire committee, Spring 2020
• Course coordinator Math 214 (Spring and Fall), 2019
• Joint Organizer, Mathematics and Climate Seminar, Spring 2019
• Joint Director of the EXTREEMS Undergraduate Research Program, 2017 - 2018
• Teaching peer reviews, Spring 2017
• Teaching peer reviews, Spring 2015
• Chair of hiring committee, 2013 - 2014
• Department Policy and Hiring Committee, 2012 - 2014
• Teaching peer reviews, Spring 2013
• GMU Math Club Faculty Advisor, 2011 - 2012
• Joint organizer, Applied and Computational Math Seminar, 2007 - 2012
• Director of the Undergraduate Research in Computational Math (NSF-sponsored CSUMS) program, 2011 - 2012
• Adhoc (elected) member of the COS P&T Committee, 2010 - 2011
• GMU scheduling of math graduate courses, 2006 - 2008
• Policy and Hiring Committee, 2006 - 2008
• GMU Summer Research Proposal Review, Spring 2006
• Search Committee, Neuroscience/Biophysics Postdoc, Center for Neural Dynamics, Spring 2007
• Exploratory committee for a George Mason University Ph.D. in Mathematical Sciences, Spring/Summer 2003
• GMU math department transfer credit evaluation, 2000- 2001

Reviews

• Review of proposals, Simons Collaboration Grants for Mathematicians, March , 2020
• Review of proposals, Simons Collaboration Grants for Mathematicians, March , 2019
• Review of proposal for the Chilean National Science Foundation, January , 2019
• Review of proposal for the Swiss National Science Foundation, January , 2019
• NSF Review Panel, March 22 - 24, 2015
• NSF Written proposal reviews, February, 2010
• NSF Site Visitor, Institute for Applied Mathematics and its Applications (IMA), Minneapolis, Minnesota, March 24 - 25, 2009
• NSF Review Panel , March 22- 24, 2008
• Joint NIH-NSF Review Panel/other NIH reviewing, February 27- 28, 2008
• NSF Written proposal reviews, February , 2008
• NSF Review Panel, March 22-24, 2007
• NSF Review Panel, March 22- 24, 2006
• Mathematical Reviews , 1998 - 2006
• Joint NIH-NSF Review Panel/other NIH reviewing , March 22- 24, 2005
• Joint NIH-NSF Review Panel, March 22-24, 2004
• Regular review of papers

Mentoring

• Academic panelist, Math department professional development event, March 31, 2017
• Panelist, Job Search Seminar, Institute for Mathematics and Its Applications , November 16-17, 2012
• Association for Women in Mathematics (AWM) professional mentor for an early career woman mathematician, May , 2008
• Association for Women in Mathematics (AWM) professional mentor for an early career woman mathematician, May , 2007

Advocacy

• Capitol Hill Advocacy Visit, Association for Women in Mathematics, January 4, 2019
• Capitol Hill Advocacy Visit, Association for Women in Mathematics, May 1, 2018
• Capitol Hill Advocacy Visit, Association for Women in Mathematics, December 1, 2017
• Capitol Hill Advocacy Visit, Association for Women in Mathematics, December 1, 2016