Upcoming conferences and seminars
 Combinatorics and beyond: the many facets of Sergey Fomin's mathematics invited conference talk, Ann Arbor, MI, November 811, 2018.
 Notre Dame, October 3, 2018.

WINRS Conference 20 minute invited talk, Charlottesville, VA, September 15, 2018.
 ICM satellite conference 45 minute invited talk, University of Miami, July 2629, 2018.
Slides from recent/selected talks
 2018 Cumberland Conference (one hour plenary talk), Huntington, WV, May 1920, 2018
(slides on ``Posets arising as 1skeleta of simple polytopes, diameter bounds on polytopes and poset topology'' ).
 Cornell Discrete Geometry and Combinatorics Seminar, May 7, 2018
(slides on ``Posets arising as 1skeleta of simple polytopes, the nonrevisiting path conjecture and poset topology'').
 Helen Barton Lecture, UNC Greensboro, April 6, 2018
(slides on ``From poset topology to combinatorial representation theory'').
 Joint Math Meetings Special Session on
``Special Functions and Combinatorics'' in honor of Dennis Stanton, San Diego, CA, January 1013, 2018
(slides on ``Posets from Polytopes'').
 Notre Dame Cluster Algebras Seminar, November 27, 2017
(slides on ``Crystal graphs and SBlabelings'').
 MSRI Connections for Women Workshop: Geometric and Topological Combinatorics, Berkeley, CA, August 31September 1, 2017
(slides on ``Shellability of uncrossing posets and the CW poset property'').
 AIM Workshop on Topology of the Biomolecular World, San Jose, CA, July 2428, 2017
(slides on ``Discrete Morse Theory for Poset Order Complexes'').
 Algebraic and Geometric Combinatorics of Reflection Groups Conference, University of Montreal, Montreal, June 59, 2017, ``Shelling Bruhat order and the proof of a conjecture of Thomas Lam''.
 Indiana University Combinatorics Seminar, April 4, 2017
(slides on ``Crystal graphs and SBlabelings'').
 University of British Columbia Topology and Related Fields Seminar, February 15, 2017
(slides on ``Representation stability in configuration spaces via Whitney homology of the partition lattice'').
 University of Washington Math Department Colloquium, February 10, 2017 (slides on ``Poset topology meets combinatorial representation theory'').
 University of Southern California Math Department Colloquium, February 8, 2017 (slides on ``Crystal graphs and SBlabelings'').
 UCLA Combinatorics Seminar, February 7, 2017 (slides on ``Crystal graphs and SBlabelings'').
 Cornell Discrete Geometry and Combinatorics Seminar, January 30, 2017
(slides on ``Crystal graphs and SBlabelings'').
 ICERM Workshop on Topology and Geometry in a Discrete Setting, Providence, RI, November 28December 2, 2016.
(slides on ``Representation stability in configuration spaces via Whitney homology of the partition lattice'')
 ICERM Minicourse on Topological Combinatorics of Posets and Stratified Spaces, Nov. 7, 11, and 14, 2016 (during sabbatical semester at ICERM).
(1st lecture slides) (2nd lecture slides) (3rd lecture slides)
 MIT Combinatorics Seminar, October 12, 2016
(slides on ``Crystal graphs and SBlabelings'').
 Brown Discrete Math Seminar, October 11, 2016
(slides on ``Crystal graphs and SBlabelings'') and
(appendix slides).
 AMS Eastern Sectional Meeting, Special Session on Combinatorial Aspects of Nilpotent Orbits, Brunswick, ME, September 2425, 2016
(slides on ``From the weak order to crystal graphs as posets'').
 UIUC Combinatorics Seminar, August 5, 2016 (slides on ``From the weak order to crystal posets'').
 Duke University SWIM 2016 Summer Math Program for Women, Guest Lecture, Durham, NC, June 20, 2016
(slides on ``Combinatorics meets topology: Moebius function, Euler characteristic, and beyond'').
 University of Chicago Minicourse on Topological combinatorics of posets and stratified spaces (3 lectures), during U. Chicago one month visit (March 512, 2016 and May 17June 10, 2016).
(1st lecture slides) (2nd lecture slides) (3rd lecture slides)
 Cornell Topology Festival, Ithaca, NY, May 1116, 2016
(slides on ``Representation stability and S_n module structure in the homology of the partition lattice'').
 BIRS Workshop on Free Resolutions, Representations, and Asymptotic Algebra, April 38, 2016 (slides on ``Representation stability and S_n module structure in the partition lattice'').
 University of Illinois at Chicago Algebraic Geometry Seminar Talk, March 7, 2016 (slides on ``Regular cell complexes in total positivity'') during U. Chicago one month visit (March 512, 2016 and May 17June 10, 2016).

Joint Math Meetings Algebraic Combinatorics AWM Workshop (January 69, 2016, Seattle WA): From the weak Bruhat order to crystal graphs as posets (tablet pc handwritten slides).

University of Minnesota Combinatorics Seminar (held in the Student Combinatorics Seminar as 75 minute talk, December 10, 2015, Minneapolis MN): From the weak Bruhat order to crystal posets (tablet pc handwritten slides).

Southeast Lie Theory Meeting (October 911, 2015, Raleigh NC): From the weak Bruhat order to crystal posets (tablet pc handwritten slides).

Brown University math department colloquium (February 23, 2015, Providence RI): Combinatorics and topology of totally positive spaces (tablet pc handwritten slides).
 Combinatorial algebra meets algebraic combinatorics conference one hour plenary talk (January 2325, 2015, Kingston, Ontario, Canada): Regular cell complexes in total positivity (tablet pc handwritten slides).
 Wachsfest Conference one hour talk (January 6, 2015, Miami FL): Representation stability in the partition lattice (tablet pc handwritten slides). Includes some additional material not in the earlier talks below on this topic  based on joint work with Vic Reiner.
 Stanford University topology seminar (December 2, 2014): Regular cell complexes in total positivity (tablet pc handwritten slides).
 Stanford University representation stability seminar (December 2, 2014): Representation stability and S_nmodule structure in the partition lattice (tablet pc handwritten slides)  based on joint work with Vic Reiner.
 U. Chicago geometry/topology seminar (November 18, 2014): Regular cell complexes in total positivity (tablet pc handwritten slides).
 U. Wisconsin combinatorics seminar (November 3, 2014): Representation stability and S_nmodule structure in the partition lattice (tablet pc handwritten slides)  based on joint work with Vic Reiner.
 Survey talk on Discrete Morse Theory (Oct. 30, 2014, IMA, U. Minnesota, Minneapolis MN, Program on Discrete Structure: Analysis and Applications) Discrete Morse theory from a matching theoretic perspective (tablet pc handwritten slides)  partly based on joint work with Eric Babson.
 A Conference Honoring Richard Stanley (June 26, 2014, MIT, Cambridge MA):
Posets with each interval homotopy equivalent to a ball or sphere (tablet pc handwritten slides)  based on joint work with Karola Mészáros.
 IMA conference one hour talk (April 29, 2014):
Topology and combinatorics of generically injective maps, (tablet pc handwritten slides)  partly based on joint work with Alex Engström and Bernd Sturmfels.
 Berkeley combinatorics seminar (March 10, 2014): Regular cell complexes in total positivity, (tablet pc handwritten slides). With extra slides at the end as an appendix giving indications of some more technical details. Very similar (but not identical) to UCLA talk.
 UCLA combinatorics seminar (December 12, 2013): Regular cell complexes in total positivity, (tablet pc handwritten slides). With extra slides at the end as an appendix giving indications of some more technical details.
 Michigan combinatorics seminar (November 1, 2013): Regular cell complexes in total positivity, (tablet pc handwritten slides). This includes extra slides as an appendix after the talk on topics I omitted from this particular talk.
 FPSAC Conference one hour plenary address (June 27, 2013, Paris, France): Topological combinatorics of Bruhat order and total positivity, 9 megabytes (tablet pc handwritten slides)
 ICERM 45 minute talk (March 5, 2013, Providence, RI): Symmetric chain decomposition for cyclic quotients of Boolean algebras and relation to cyclic crystals, 7 megabytes (tablet pc handwritten slides)  talk also given at
UNC Chapel Hill (Sept. 16, 2011), NCSU seminar (August 26, 2011, U. Penn/Drexel (Oct. 18, 2011), Georgia Tech (Nov. 18, 2011), Michigan (March 30, 2012), and a shorter version at AMS sectional meeting at George Washington University (March 17, 2012)  based on joint work with Anne Schilling.
 AMS Southeastern Sectional Meeting One Hour Invited Address (March 1, 2013, Oxford, MS): ``An Interplay of Combinatorics with Topology''.
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