• Physic Department Colloquium, Univ. of North Texas, 2023
• International Centre for Mathematical Sciences (ICMS), Workshop on "Various Guises of Reflection Arrangements", Edinburgh, Scotland, 2023
• Combinatorics Seminar, Univ. of Minnesota, Minneapolis, 2022
• Recent Advances and New Directions in the Interplay of Noncommutative Algebra and Geometry, conference in honor of Paul Smith, University of Washington, Seattle 2022
  
• American Mathematical Society Special Session on Hopf Algebras and Tensor Categories, JMM Annual Meetings (Seattle), Winter 2022
  
• TORA = Texas-Oklahoma Representations and Automorphic Forms, Oklahoma State Univ., 2022
  
• Seattle Noncommutative Algebra Day, Seattle, Washington 2022
  
• Special Session on Hopf Algebras, Tensor Categories, and Related Homological Methods, American Mathematical Society Spring Eastern Sectional Meeting (formerly at Brown University), 2021
• Workshop on Hyperplane Arrangements and Reflection Groups, Leibniz Universität, Hannover, Germany, 2019
• SIAM, Society for Industrial and Applied Mathematics, Minisymposium on Parking Functions and (Co)invariant Rings, Southern Methodist University, 2019
  
• AMS-MAA Winter Meetings, Special Session on Noncommutative Algebras and Noncommutative Invariant Theory, Invariant Theory of Reflection Groups, American Mathematical Society, San Diego, 2018
  
• CMS Summer Meetings, Scientific Session on Algebraic Groups and Related Topics, Classical invariant theory, Canadian Mathematical Society, Fredericton, Canada, 2018
• CMS Summer Meetings, Scientific Session on Cohomology -- a link between numbers and geometry, Resolutions for twisted tensor products, Fredericton, Canada, 2018
  
• Special Session on Arrangements of Hypersurfaces, Invariant derivations and differential forms for reflection groups, American Mathematical Society, Boston, 2018
• Special Session on Noncommutative Algebra and Representation Theory, Twisted tensor products, American Mathematical Society, Boston, 2018
• Algebra Extravaganza! A Conference in Honor of Ellen Kirkman and Martin Lorenz, Noncommutative algebras arising from group actions and color Lie algebras, Temple University, Philidelphia, 2017
• Special session on Special Session on Lie Algebras, Superalgebras, and Applications, Universal enveloping algebras of color Lie rings, American Mathematical Society, Denton, Texas, 2017
• Group Actions and Algebraic Combinatorics, Herstmonceux Castle, United Kingdom, July 2016
  
• Banff International Research Station (BIRS), WINART: Women in Algebraic Combinatorics, Banff, Canada, 2016
  
• Number Theory Seminar, Texas A&M University, Texas, 2016
• Combinatorics Seminar, University of Minnesota, 2016
  
• Special Session on New Developments in Noncommutative Algebra, AMS Spring Western Sectional Meeting, Univ. of Nevada, Las Vegas,  April 2015
• Special Session on Cohomology of Algebras and Deformation Theory, Central Fall Sectional Meeting, Loyola Univ., Chicago, IL, Oct. 2015
• Combinatorics Seminar, University of Minnesota, May 2014
• AGANT: Metroplex Algebraic Geometry, Algebra and Number Theory Seminar, University of Texas at Arlington, May 2013
• Panelist at Connections for Women: Noncommutative Algebraic Geometry and Representation Theory Workshop, MSRI, Berkeley, Jan 2013
• TORA III: Texas-Oklahoma Representations and Automorphic Forms, University of Oklahoma, Sept 2012
• TORUS: Texas Oklahoma Research Undergraduate Symposium, Keynote Speaker, Univ. of Central Oklahoma, Feb. 2012
  
• Special Session on Reductive Groups and Hecke Algebras, AMS Fall Western Sectional, Salt Lake City Utah, Oct 2011
• Research Training Group: Experimental and Constructive Algebra, RWTH Aachen University, Germany, July 2011
• Panel speaker for Combinatorixx Workshop, Banf International Research Station (BIRS), Canada, May 2011
• Chevalley Seminar in Paris, France, Dec 2009
• University of Oxford, England, Nov 2009
• University of Leicester, England, Nov 2009
• University of Edinburgh, Scotland, Nov 2009
• Bonn-Cologne Algebra Seminar, Germany, June 2009
• Emmy Noether Center, University of Erlangen-Nürnberg, Germany, Apr. 2009
• St. Nikolaus Conference, RWTH Aachen, Germany, Dec. 2008
• Colloquium, Mathematics Department, RWTH Aachen, Germany, Nov. 2008
• CombinaTexas, El Paso, Texas, Apr. 2008
• Special Session on Arrangements and Related Topics, Co-organizer, AMS/MAA Joint Meetings, New Orleans, Jan. 2007
• Special Session on Invariant Theory, AMS/MAA Joint Meetings, New Orleans, Jan. 2007
•  MSRI (Berkeley), "Recent Developments in Arrangements and Configuration Spaces" honoring Sergey Yuzvinsky's 70th birthday, Aug., 2006
• Texas Tech Univ., Outstanding Early Career Speaker, "Invariant Theory in Perspective", Red Raider Symposium, Nov. 2004
• MSRI (Berkeley), Combinatorial Aspects of Hyperplane Arrangements,  Nov. 2004
• Texas Christian University, Colloquium, Oct 2004
• Texas A&M, Combinatorics Seminar, April 2004
• U.C. Santa Barbara, Automorphic Forms Workshop, March 2004
• Microsoft Corporation and Univ. of Washington joint seminar, March 2004
• Phoenix: AMS-MAA National, Special Session, Jan. 2004
• U. of Goettingen, Germany, INGO2003: Invariant Theory and its Interactions with Related Fields, March 2003
• Louisiana State University, AMS Sectional, Special Session, March 2003
• U. of Wisconsin, Madison, AMS Sectional, Special Session, Oct. 2002
• University of Oregon, Colloquium, June 2002
• University of Santa Clara, California, Colloquium, Feb. 2002
• U. of Heidelberg, Germany, Algebra Seminar, June 2001
• U. of Minnesota, Combinatorics Seminar, May 2001
• U.C. Berkeley, Combinatorics Seminar,  April 2001
• Columbia U., AMS Sectional, Special Session "Arrangements of Hyperplanes", Nov. 2000
• U. of Wisconsin, Madison, Lie Theory Seminar, Nov. 2000
• U. of Wisconsin, Madison, Topology Seminar, Nov. 2000
• U.C. Davis, California, Bay Area Discrete Math Day, Oct. 2000
• U.C. Santa Cruz, California, Colloquium, Oct. 2000 and Jan. 2000
• Valparaiso U., Indiana, Colloquium, Jan. 2000
• Tokyo Metropolitan U., Japan, Colloquium, Nov. 1999
• San Antonio, AMS-MAA National, Special Session "Geometry in Dynamics", Jan. 1999