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Service

    1. Administrator of the MAGNUS Electronic Preprint Archive in Group Theory, City College of CUNY, 1994-1996
    2. Teaching an experimental College Calculus course at the Highland Park High School, High- land Park, New Jersey, 1999.
    3. Postgraduate-Scholar Advisees (all at University of Illinois at Urbana-Champaign) : Pe- ter Brinkmann, Charles Patrick Bahls, Dan Farley, John Mackay, Lev Glebsky, Mathieu Carette, Piotr Przytycki, Funda Gultepe
    4. Lead organizer of the University of Illinois at Urbana-Champaign Group Theory Seminar, Fall 2000-Spring 2014
    5. Co-organizer of the University of Illinois at Urbana-Champaign ”Geometry, Group and Dynamics/GEAR Seminar”, Fall 2014-present
    6. Co-organizer of the VIGRE RAP ”Spaces of Non-positive Curvature”, 2001-2003
    7. Participating as an advisor in the “Geometric Group Theory” REUs at University of Illinois at Urbana-Champaign, 2003-2008
    8. University of Illinois at Urbana-Champaign Faculty Senate, 2006-2008, 2008-2010
    9. Refereeing over 80 mathematical articles for scholarly journals
    10. Refereeing grants proposals for the Nantional Science Foundation, Swiss National Science Foundation, University of Illinois at Urbana-Champaign Research Board and CUNY Re- search Foundation.
    11. Writing over 40 published reviews for the Mathematical Reviews, a reviewing publication of the American Mathematical Society
    12. Chair, local organizing committee, AMS Meeting at University of Illinois at Urbana-Champaign in March 27-29, 2009 (this was the largest AMS sectional meeting ever in terms of the num- ber of registered participants).
    13. Guest editor, special Paul Schupp issue of the Illinois Journal of Mathematics (published in Spring 2010)
    14. Editorial Adviser, LMS Journal of Computation and Mathematics; 2010 – 2015
    15. Guest editor, special Wolfgang Haken issue of the Illinois Journal of Mathematics (published in July 2017)
    16. Member of the American Mathematical Society Committee on Publications, 2016-2019; Chair 2017-2018
    17. Lead organizer of the Four Color Theorem Fest, University of Illinois at Urbana-Champaign, November 2017
    18. Setting up and maintaining the Geometric Group Theory mailing list [email protected] for announcements about events and positions of interest to the geometric group theory community around the world
    19. Co-organizer and webmaster co-organizer of the regional Geometry, Groups and Dynamics workshops, Fall 20014 – Spring 2018
    20. Member of the Steering Committee for the GAGTA (Geometric and Asymptotic Group Theory with Applications) conference series; 2017–present
    21. Member of Committee on Human Rights of Mathematicians, American Mathematical So- ciety, February 1, 2018 through January 31, 2021; Chair of the committee, February 1, 2020-January 31, 2021
    22. AMS Representative to the AAAS Coalition on Science and Human Rights, February 1, 2018 through January 31, 2021
    23. Co-organizer and webmaster of the New York Group Theory Seminar, grouptheory.org, 2018 – current