Richard Ehrenborg has been invited to participate in the Geometric Combinatorics Workshop at the Institute for Pure and Applied Mathematics, UCLA in October 2009.
Richard Ehrenborg and Margaret Readdy have been invited to give talks in the AMS special session "Permutations" being organized by Persi Diaconis (Stanford), Ira Gessel (Brandeis) and Richard Stanley (MIT). This is part of the Joint Mathematics Meetings in San Francisco in January 2010.
Richard Ehrenborg and Margaret Readdy are co-organizing the NSF-funded workshop Combinatorics 2010: Advances, Trends and Speculations (CATS 2010 Workshop). The keynote speakers are Sara Billey (U Washington), Patricia Hersh (North Carolina State), Isabella Novik (U Washington) and Stephanie van Willigenburg (U British Columbia) This is being held one day before the AMS Spring Southeastern Sectional Meeting being held at the University of Kentucky in late March 2010. At the same meeting, Margaret and Richard are organizing the special session Advances in Algebraic & Geometric Combinatorics, which dovetails with the CATS 2010 Workshop. Jakayla Robbins and Xiangqian Zhou (Wright State U) are coorganizing a special session on Matroid Theory and Benjamin Braun will be speaking in the special session "Combinatorial Algebra" being organized by Uwe Nagel and Juan Migliore. Doron Zeilberger (Rutgers) will be giving the 2010 Erdos Memorial Lecture.
Benjamin Braun has been invited to speak in the AMS special session "Geometric Combinatorics" in April 2010.
Graduate student Matt Zeckner has been invited to speak in the AMS special session "Geometric Combinatorics" in April 2010.
Benjamin Braun will be giving a talk in the "Geometric combinatorics" minisymposium organized by Tyrrell McAllister at the June 2010 SIAM Conference on Discrete Mathematics.
Margaret Readdy will be visiting the University of Washington in February 2009 and giving a talk in the University of Washington Combinatorics Seminar.
Benjamin Braun has been invited to give a talk at the Ulam Centennial Conference in March 2009 in the session on "Ulam and Combinatorics".
The 5th Graduate Student Combinatorics Conference (GSCC 2009) comes to the University of Kentucky! Graduate students Eric Clark, Patricia Muldoon (Chair), JiYoon Jung and DJ Wells are organizing the GSCC 2009. Margaret Readdy is the faculty advisor. It will be held March 27-29, 2009. The confirmed keynote speaker is Richard Stanley (MIT). More information about the conference can be found at www.math.uky.edu/~gscc .
Richard Ehrenborg will be giving a talk in the special session "Applications of Algebraic and Geometric Combinatorics" at the 2009 Spring Southeastern Sectional Meeting at North Carolina State in April 2009.
Richard Ehrenborg will be giving a colloquium talk at George Washington University in April 2009.
Benjamin Braun has been invited to give a talk at the AMS Western Sectional Meeting, Spring 2009, in the special session on "Algebra and Number Theory with Polyhedra".
Benjamin Braun has been invited to participate in the workshop "Combinatorial challenges in toric varieties" in April and May 2009, hosted by the American Institute of Mathematics. His trip will be funded through the AIM Research Conference.
In early October Margaret Readdy is giving a talk in the special session "Geometric Combinatorics" held at the Fall Central Section Meeting of the AMS in Chicago, IL.
At the end of October, Richard Ehrenborg will be giving a talk in the Michigan State University Algebra Seminar.
In mid-November Richard Ehrenborg will be giving a talk in the Indiana University Combinatorics Seminar. Later in November Benjamin Braun will also be giving a talk at the Indiana University Combinatorics Seminar.
Richard Ehrenborg will be talking about the University of Kentucky graduate program in mathematics at the Michigan Undergraduate Mathematics and Midwest Systems Biology Conference.
Nicholas Loehr (College of William and Mary), Gabor Pataki (University of North Carolina), Margaret Readdy, Carla Savage (North Carolina State), and University of Kentucky's Assistant Professor of Statistics Ruriko Yoshida are co-organizing the special session "Combinatorial Enumeration, Optimization, Geometry, and Statistics" at the AMS Fall Southeastern Sectional meeting in Murfreesboro, TN. Carla Savage will be giving a one-hour invited address at the meeting. In the special session graduate student Carlos Nicolas will be giving a talk, along with Benjamin Braun, Margaret Readdy and Ruriko Yoshida .
In March 2008 Benjamin Braun will be giving a talk in the San Francisco State University Algebra-Geometry-Combinatorics Seminar.
In April 2008 Richard Ehrenborg and Margaret Readdy will be giving talks in the in the special session, "Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them" in the Spring Central Section Meeting of the AMS at Indiana University. This special session is being organized by Patricia Hersh (Indiana U), Cristian Lenart (SUNY Albany) and Michelle Wachs (U Miami).
Margaret Readdy gave a colloquium talk at the University of North Carolina at Charlotte in April 2008.
In June 2008 Richard Ehrenborg and Margaret Readdy will be giving invited talks at the Billerafest, a conference in celebration of Louis Billera's 65th Birthday. Lou Billera has many connections with Kentucky, among them being a coauthor of Margaret and Richard's, as well as the thesis advisor of Carl Lee.
In June 2008 Graduate student Tricia Muldoon will be presenting a poster on her research at the FPSAC 2008 in Valparaiso, Chile. She will be also giving a talk on behalf of Richard Ehrenborg, Margaret Readdy and Michael Slone at the FPSAC 2008.
Effective July 1, 2006, Richard Ehrenborg has been promoted to Full Professor.
Graduate student Carlos Nicolas has proved the empty convex hexagon conjecture of Erdös. This problem has been open since 1977. His paper will appear in Discrete and Computational Geometry.
During the academic year 2006-2007 Richard Ehrenborg and Margaret Readdy are both on sabbatical leave at MIT.
In September 2006 Richard Ehrenborg is giving an invited talk at the Workshop for Geometric and Topological Combinatorics in Madrid, Spain. This is an International Congress of Mathematicians (ICM) satellite conference.
Richard Ehrenborg is giving an invited talk at the special session "Geometric Combinatorics" at the Fall Central Meeting of the AMS in Cincinnati, OH. His talk is titled, "Gorenstein* lattices" and is joint work with Kalle Karu (UBC).
Graduate student Michael Slone will be a visiting graduate student at MIT for a week in October 2006. He will then attend the Fall Eastern Meeting of the AMS in Storrs, CT, where he will give the talk, "An index for non-regular spheres".
Richard Ehrenborg and Margaret Readdy are organizing the special session, "Algebraic and Analytic Combinatorics" at the Fall Eastern Meeting of the AMS in Storrs, CT in October 2006.
Graduate student Patricia Muldoon will be a visiting graduate student at MIT for a week in November 2006.
Visiting Assistant Professor Edwin O'Shea is an invited speaker at ACCOTA 2006 (Puerto Vallarta, Mexico; December 2006). He will also be giving a four hour tutorial on Groebner basis methods in integer programming at the IMA in January 2007.
Stanley's Gorenstein* lattice conjecture is settled!
Richard Ehrenborg and Kalle Karu (University of British Columbia) proved Stanley's conjecture: the cd-index of a Gorenstein* lattice is coefficientwise minimized on the Boolean algebra. Their paper will appear in Journal of Algebraic Combinatorics. Earlier work leading up this result was:
In Spring 2007 Margaret Readdy will be giving seminar talks at MIT, Northeastern and Cornell on toric hyperplane arrangements. This is joint work with Richard Ehrenborg and Michael Slone. Richard Ehrenborg will be speaking about this work in the special session "Algebraic and Extremal Combinatorics" at the Spring Southeastern Meeting of the AMS in Davidson, NC in March 2007.
Graduate students Patricia Muldoon and Carlos Nicolas will be giving talks at the 3rd annual Graduate Student Combinatorics Conference at the University of Washington in April 2007. The keynote speaker will be Vic Reiner (Minnesota).
Carl Lee will be giving a talk at the Geometry Fest in celebration of Ted Bisztriczky's 60th birthday in Budapest, Hungary in June 2007.
Carl Lee and his colleagues Margaret Bayer, Lauren Rose and Ed Swartz are organizing the Billerafest, a conference in honor of Louis Billera's 65th Birthday June 13-15, 2008.
Graduate student Carlos Nicolas has just been awarded a University of Kentucky Presidential Fellowship.
In Fall 2007 Benjamin Braun will be joining our department as a new Assistant Professor. He received his PhD in 2007 at Washington University in St. Louis under the direction of John Shareshian. Ben has research interests in combinatorics, topology, algebra and geometry.
Graduate student Phil Busse spent the Summer 2005 working at NSA.
In March 2006 Richard Ehrenborg and Carl Lee were invited to BIRS (Banff International Research Station) as part of the Convex Sets and their Applications workshop. Carl Lee gave the talk, "Multiple views of h-vectors" and Richard Ehrenborg gave the talk, "The cd-index, polytopes and Gorenstein* lattices".In April 2006 graduate students Tricia Muldoon and Michael Slone attended the 2nd annual Graduate Student Combinatorics Conference. It was held in at the University of Wisconsin, Madison. Tricia and Michael each gave talks. The keynote speaker was Doron Zeilberger (Rutgers).
In June 2006 Margaret Readdy gave the invited talk, "Eulerian binomial and Sheffer posets" at the 18th International Formal Power Series and Algebraic Combinatorics (FPSAC) conference in San Diego, CA. At the same conference, Richard Ehrenborg presented the paper, "A spectral approach to pattern-avoiding permutations".
In 2004 Richard Ehrenborg was selected to be the first Royster Research Professor in Mathematics. This named professorship is funded by Emeritus Professor Wimberly Royster and his wife Betty Royster. It is awarded to an Associate Professor with outstanding research achievement.
Richard Ehrenborg and Margaret Readdy were invited to be part of the research program at the Institute for Advanced Study/Park City Mathematics Institute in July 2004. The IAS/Park City program was in Geometric Combinatorics.
In August 2004 Richard Ehrenborg and Margaret Readdy were invited to BIRS (Banff International Research Station) as part of the Combinatorial and Hopf Algebras workshop. Richard Ehrenborg gave the talk, "Geometric transforms of posets and associated coalgebras".
During the academic year 2004-2005, graduate student Michael Slone was selected to be a University of Kentucky Presidential Scholar. Michael spent the Spring 2005 at the Mittag-Leffler Institute during a special semester in Algebraic Combinatorics.
Richard Ehrenborg and Margaret Readdy were research visitors at Mittag Leffler Institute in March 2005 as part of the Spring 2005 Program in Algebraic Combinatorics.
Richard Ehrenborg and Margaret Readdy were the keynote speakers for the first Graduate Student Combinatorics Conference held in April 2005 at the University of Minnesota.