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  • Associate Professor
  • Mathematics
831 Patterson Office Tower
859-257-6810

2017-2018

  • Richard Ehrenborg  has been awarded the Edwards Research Professor. The Edwards professorship was established with a gift from Ralph E. and Norma L. Edwards of Baltimore, MD. Ms. Edwards studied mathematics at the University of Kentucky beginning at the age of 14 and earned her bachelor's degree from UK in 1933.
  • Margaret Readdy is now the Academic Research Manager for the Institute for Advanced Study's WAM program in Princeton. This mentoring program for women was established in 1993. The 2018 program is the Mathematics of Modern Cryptography. It features week-long lecturers Toni Bluher (NSA) and Kristin Lauter (Microsoft Research), a women in sciences seminar, panels chaired by female mathematicians in academic and industry, and a one day visit to the Princeton University Mathematics Department..

2016-2017

  • Margaret Readdy is a plenary speaker for the FPSAC 2016 in Vancouver, Canada. This is the 28th International Conference on Formal Power Series and Algebraic Combinatorics. (July 2016)
  • Graduate student Marie Meyer has been accepted to the 2016 MSRI summer graduate school on "Chip Firing and Tropical Curves."
  • Benjamin Braun is an invited panelist at the 2016 Symposium on Active Learning in Mathematics, funded by NSF and the Sloan Foundation.
  • Graduate student McCabe Olsen has been awarded an NSF EAPSI fellowship to spend Summer 2016 at Osaka University in Osaka, Japan, as a visiting graduate student in the research group of Takayuki Hibi.
  • Graduate student Wesley Hough will be giving a talk at the 2016 SIAM Conference on Discrete Mathematics in Summer 2016.
  • Benjamin Braun is an invited speaker in the combinatorics seminar at Marshall University in Summer 2016.
  • Richard Ehrenborg was the Marshall University Advanced Research Initiative speaker in the Mathematics Department in October 2016, giving both a general talk and a specialized talk.
  • Benjamin Braun is co-organizing the November 2016 workshop "Partition Theory and Polyhedral Geometry" at the American Institute of Mathematics, with Federico Ardila, Peter Paule, and Carla Savage.  Postdoc Rafael Gonzalez D'leon and graduate student McCabe Olsen are invited participants.
  • Benjamin Braun, Richard Ehrenborg and Margaret Readdy gave talks in the AMS special session "Algebraic and Enumerative Combinatorics with Applications" as part of the 2017 Spring Central Sectional Meeting being held in Bloomington, IN at Indiana University. Saul Blanco (Indiana U) and Kyle Petersen (DePaul U) organized this session. (April 2017).
  • Margaret Readdy is giving a talk at the 2017 Midwest Combinatorics Conference being held at the University of Minnesota. (May 2017)
  • Margaret Readdy is a research team leader for the 2017 BIRS Workshop Algebraic Combinatorixx 2. (May 2017)

2015-2016

  • Graduate students Liam Solus and Brian Davis are participants in the June-July 2015 Berlin Mathematical School summer program "Convex Geometry - Discrete and Computational."
  • Graduate student Yue Cai will be presenting the paper "Negative q-Stirling numbers" at the International FPSAC Conference in Daejeon, South Korea in July 2015.
  • Martha Yip is presenting the paper "A categorification of the chromatic symmetric function" at the Internationl FPSAC Conference in Daejeon, South Korea in July 2015.
  • Graduate student Liam Solus had a talk accepted at the August 2015 SIAM Conference on Applied Algebraic Geometry in Daejon, South Korea.
  • Margaret Readdy is a plenary speaker for the Discrete Math Day at Worcester Polytechnic Institute in September 2015.
  • Benjamin Braun, Liam Solus, and Rafael Gonzalez D'leon are invited speakers in the October 2015 AMS Central Sectional Meeting in the Special Session on Enumerative Algebraic and Geometric Combinatorics.
  • Richard Ehrenborg is an invited speaker at the Fall 2015 AMS Southeastern Sectional Meeting in the special session on Topological Combinatorics held at the University of Memphis. Eric Gottlieb and Russ Woodroofe organized the sesison. (October 2015)
  • Benjamin Braun is an invited participant in the October 2015 workshop for creating a Mathematical Association of America Instructional Practices Guide.
  • Margaret Readdy is an invited speaker in the special session "Geometry and Combinatorics of Polytopes" in the Fall 2015 Eastern sectional meeting of the AMS held at Rutgers University in November 2015.
  • Benjamin Braun is an invited participant in the November 2015 workshop "Sandpile Groups" at the Banff research station in Oaxaca, Mexico.
  • Martha Yip is an invited speaker in the Marshall University Mathematics Colloquium in November 2015.
  • Martha Yip is an invited speaker in the University of Kansas Combinatorics Seminar in December 2015.
  • Benjamin Braun is an invited speaker at the 2016 Joint Mathematics Meetings in the special session on Algebraic and Topological Methods in Combinatorics.
  • Graduate student Liam Solus has been awarded an NSF postdoctoral research fellowship.
  • Margaret Readdy  is an invited lecturer for the Lake Michigan Workshop on Combinatorics at Purdue University. She will be giving a series of three one-hour lectures. Graduate students Yue Cai, Alex Happ and Dustin Hedmark will each be giving invited talks about their current research as part of the program. (March 2016)
  • Richard Ehrenborg gave a colloquium talk at the University of Maine. (March 2016)

2014-2015

  • Effective July 1, 2014 Benjamin Braun has been promoted to Associate Professor.
  • During the academic year 2014--2015 Margaret Readdy is a Visiting Professor and Research Scholar at the Princeton University Mathematics Department.
  • Richard Ehrenborg is a Visiting Professor and Research Scholar at the Princeton University Mathematics Department in academic year 2014--2015.
  • Graduate student Liam Solus was awarded an NSF EAPSI fellowship in support of a 10-week visit to Osaka University in Summer 2014, where he will be working with Takayuki Hibi.
  • Benjamin Braun and Carl Lee are invited speakers at the August 2014 Fields Institute workshop "On Making Models: Stimulating Research In Rigidity Theory And Spatial-Visual Reasoning."
  • Benjamin Braun is the founding Editor-in-Chief of the American Mathematical Society blog "On Teaching and Learning Mathematics."
  • Benjamin Braun has been appointed as a member-at-large on the American Mathematical Society Committee on Education from 2014 to 2017.
  • Benjamin Braun is the invited leader for a workshop on using writing in first-year STEM courses at Texas A&M International University in September 2014.
  • Margaret Readdy gave a talk in the University of Pennsylvania Combinatorics and Algebraic Geometry seminar in September 2014.
  • Carl Lee gave the lecture, "Stillness in Motion: The Essence of Symmetry" as part of the 2014--15 Chellgren Seminar Series at the University of Kentucky.
  • Richard Ehrenborg is a one-hour invited speaker at the Fall 2014 Triangle Lectures in Combinatorics in October 2014 at High Point, NC.
  • Richard Ehrenborg is a one-hour invited speaker at the Clemson Mini-Conference in Discrete Mathematics in October 2014.
  • Graduate student Robert Davis in an invited speaker at the 2014 Fall Western Section Meeting of the American Mathematical Society in San Francisco in the special session on polyhedral number theory. 
  • Margaret Readdy is a one-hour invited speaker at the 28th Midwest Conference on Combinatorics, Cryptography and Computing (MCCCC), University of Nevada, Las Vegas in October 2014.
  • Margaret Readdy is a one-hour invited speaker at Discrete Math Day at WPI in September 2015.
  • Benjamin Braun is an invited speaker at the November 2014 IMA workshop on Geometric and Enumerative Combinatorics.
  • Richard Ehrenborg is an invited speaker for the Michelle Wachs Conference in January 2015 at the University of Miami.
  • Margaret Readdy is an invited speaker for the Michelle Wachs Conference in January 2015 at the University of Miami.
  • Richard Ehrenborg will be giving a talk in the Princeton University Combinatorics Seminar in February 2015.
  • Margaret Readdy will be speaking in the Rutgers Discrete Mathematics Seminar on March 9th.
  • Margaret Readdy will be speaking in the Rutgers Experimental Mathematics Seminar on March 12th.
  • Martha Yip is an invited speaker in the University of Pennsylvania Combinatorics and Algebraic Geometry Seminar in March. 
  • Richard Ehrenborg will be speaking in the Rutgers Discrete Mathematics Seminar on April 13th.
  • Benjamin Braun is an invited speaker at the March 2015 Spring Northeastern Section Meeting of the American Mathematical Society, in the special session on convexity and combinatorics
  • Graduate student Yue Cai will be giving a talk in the Princeton University Combinatorics Seminar in May 2015.
  • Richard Ehrenborg is an invited speaker for the 2015 Midwest Combinatorics Conference in May 2015 at the University of Minnesota.
  • Benjamin Braun is an invited speaker at the May 2015 Midwest Combinatorics Conference at the University of Minnesota.
  • Martha Yip is an invited speaker at the May 2015 Midwest Combinatorics Conference at the University of Minnesota.
  • Benjamin Braun is an invited participant in the May 2015 Common Vision project workshop sponsored by the MAA, AMS, ASA, SIAM, and AMATYC.
  • Rafael Gonzalez D'leon is an invited speaker at the October 2014 AMS Sectional Meeting at San Francisco State University, in the special session on Topological Combinatorics and Combinatorial Commutative Algebra.
  • Rafael Gonzalez D'leon is an invited speaker at the January, 2015 Conference in honor of Michelle Wachs at the University of Miami.
  • Rafael Gonzalez D'leon is an invited speaker at the March 2015 AMS Sectional meeting at Michigan State University, in the Special session on Algebraic Combinatorics.
  • Rafael Gonzalez D'leon is an invited speaker at the March 2015 Graduate Student Combinatorics Conference at the University of Kentucky.
  • Rafael Gonzalez D'leon is an invited speaker at the April 2015 AMS Sectional meeting at the University of Nevada, in the special session on Algebra-geometric methods in graph theory.
  • Rafael Gonzalez D'leon is an invited speaker at the York University Applied Algebra Seminar, November 2014.
  • Rafael Gonzalez D'leon is an invited speaker at the University of Washington Combinatorics Seminar, May 2015.
  • Benjamin Braun is an invited speaker in the University of Washington combinatorics seminar, June 2015.

2013-2014

  • Graduate student Robert Davis was awarded a Fulbright Graduate Research Fellowship to spend 2013-2014 at Aalto University in Helsinki, Finland, working with Alex Engstrom.
  • Carl Lee is a recipient of the Deborah and Franklin Tepper Haimo Award for Distinguished College or University Teaching of Mathematics. His award will be presented in January 2014 during the Joint Mathematics Meetings in Baltimore, MD.
  • Richard Ehrenborg is an invited speaker at CGames 2013 USA -- 18th International Conference on Computer Games in Louisville, Kentucky in August 2013. He is speaking about joint work with Chris Skinner (Princeton U) on the Blind Bartender Problem.
  • Ben Braun, Carl Lee and David Royster are organizing the special session "The Work of Mathematicians and Mathematics Departments in Mathematics Education" in the Fall Southeastern Section Meeting of the AMS at the University of Louisville in October 2013.
  • Ben Braun is speaking in the "Topological Combinatorics" special session at the Fall 2013 AMS Sectional Meeting in Saint Louis, MO.
  • Richard Ehrenborg is speaking on "Manifold Arrangements" in the Topological Combinatorics special session at the Fall 2013 AMS Sectional Meeting in Saint Louis, MO.
  • Margaret Readdy will be visiting Binghamton University and giving a talk in their Combinatorics Seminar in October 2013.
  • Ben Braun is speaking in the mathematics department colloquium at Denison University in November 2013.
  • Carl Lee and Ben Braun are organizing the special session "Geometric and Algebraic Combinatorics" at the Spring Southeastern Section Meeting of the AMS at the University of Tennessee in March 2014. Speakers included Richard Ehrenborg, former visiting assistant professor Edwin O'Shea, and graduate students Yue CaiBrad Fox and Cliff Taylor.
  • Margaret Readdy is giving an invited talk as part Bijective and Algebraic Combinatorics, a conference in honor of Bruce Sagan's 60th birthday at the University of Florida in March 2014. Readdy was the second PhD student of Sagan.
  • Ben Braun is speaking in the mathematics department colloquium at Oberlin College in April 2014.

2012-2013

  • Benjamin Braun will be speaking in the Special Session on "Toric Algebraic Geometry and Beyond" at the AMS Central Sectional Meeting in October 2012.
  • Benjamin Braun will be speaking in the Special Session on "Algebraic and Topological Combinatorics" at the AMS Southeastern Sectional Meeting in October 2012.
  • Richard Ehrenborg will be visiting MIT and giving a talk in the MIT Combinatorics Seminar in late October 2012.
  • Margaret Readdy will be visiting MIT and giving an invited lecture in the D.W. Weeks Lecture Series in early November 2012.
  • Margaret Readdy will be visiting the University of Minnesota and giving a talk in January 2013.
  • Margaret Readdy is an invited speaker in the AMS special session "Algebraic Combinatorics" as part of the 2013 Spring Southeastern Sectional Meeting in March 2013.
  • Michelle Wachs of the University of Miami will be giving the University of Kentucky 2012-13 Hayden Howard Lecture. Previous speakers include Carlos Kenig, David Eisenbud, Richard Stanley, Gang Tian and Doron Zeilberger
  • Margaret Readdy is an Invited Lecturer (4 lectures) for the 2013 Program for Woman and Mathematics sponsored by the Institute for Advanced Study and Princeton University. In June 2013
  • Margaret Readdy will be giving the talk "Euler flag enumeration and Whitney stratified spaces" at the 11th Nordic Combinatorial Conference (NORCOM2013) in Stockholm, Sweden. In June 2013
  • Richard Ehrenborg will be giving the talk "Manifold arrangements and shelling components" at the 11th Nordic Combinatorial Conference (NORCOM2013) in Stockholm, Sweden. In June 2013
  • Richard Ehrenborg will be giving the talk "Euler flag enumeration of Whitney stratified spaces" at the FPSAC 2013 Conference in Paris, France.

2011-2012

  • Effective July 1, 2011, Margaret Readdy has been promoted to Full Professor.
  • Benjamin Braun is organizing the Invited Paper Session "Polyhedra are everywhere!" at the MathFest 2011 being held in Lexington, KY in August 2011. Speakers include Carl Lee and Margaret Readdy.
  • Benjamin Braun will be giving a talk at the SIAM Conference on Applied Algebraic Geometry in Raleigh, NC in October 2011.
  • Richard Ehrenborg gave the talk "Euler flag enumeration of Whitney stratified spaces" in the Workshop on Symmetry in Graphs, Maps and Polytopes at the Fields Institute in October 2011.
  • Benjamin Braun will be presenting a poster at the ERC Workshop "High-Complexity Discrete Geometry" at FU Berlin in October 2011.
  • Margaret Readdy gave a talk at Cornell University in the Discrete Geometry and Combinatorics Seminar and visited Louis Billera in November 2011.
  • Richard Ehrenborg and Margaret Readdy will be giving invited talks in the Special Session on Combinatorial Geometry of Polytopes being organized by Egon Schulte (Northeastern) and Asia Ivic Weiss (York University) as part of the at the January 2012 Joint Mathematics Meetings in Boston, MA.
  • Benjamin Braun and Drew Armstrong are organizing a special session on "Combinatorics: Algebraic and Geometric" at the 2012 AMS Spring Southeastern Section Meeting.
  • Undergraduate Jenna Noll gave a talk at the National Conference on Undergraduate Research at Weber State University in Utah in March 2012 based upon summer research conducted with B. Braun in Summer 2011.
  • Richard Ehrenborg gave a seminar talk at George Washington University in March 2012.
  • Margaret Readdy gave a colloquium talk at the University of North Carolina at Charlotte (April 2012).
  • Benjamin Braun and Carl Lee are giving talks in Kyoto, Japan at the Workshop on Convex Polytopes.

2010-2011

  • Richard Ehrenborg has been awarded a one year Membership at the Institute for Advanced Study in Princeton during the academic year 2010--2011.
  • Margaret Readdy has been awarded a one year Membership at the Institute for Advanced Study in Princeton during the academic year 2010--2011.
  • Richard Ehrenborg will be giving a talk in the University of Pennsylvania Combinatorics and Algebraic Geometry (CAGE) seminar in mid-October.
  • Margaret Readdy will be giving a talk in the University of Pennsylvania Combinatorics and Algebraic Geometry (CAGE) seminar in late October.
  • Benjamin Braun will be speaking in the special session, "Algebraic and Topological Combinatorics" at the 2010 Fall Central Section Meeting of the AMS November 5--7 at Notre Dame.
  • Carl Lee has been invited to participate in the BIRS conference, Topological methods in Toric Geometry, Symplectic Geometry and Combinatorics in November 2010.
  • Richard Ehrenborg and Margaret Readdy will be attending the BIRS workshop Quasisymmetric Functions in November 2010. Louis Billera, Sara Billey and Richard Stanley are organizing this workshop.
  • Margaret Readdy will be giving a talk in the Rutgers Experimental Mathematical Seminar in December 2010.
  • Richard Ehrenborg will be giving a talk in the Rutgers Experimental Mathematical Seminar in February 2011.
  • Richard Ehrenborg will be giving a talk in the at LACIM (Laboratoire de combinatoire et d'informatique mathematique) in Montreal in March 2011.
  • Drew Armstrong and Ben Braun are organizing an AMS special session at the Southeastern Sectional Meeting in March 2011.
  • Margaret Readdy has been invited to participate as a senior faculty member at the May 2011 BIRS workshop Algebraic Combinatorixx. This is a collaborative research and mentoring workshop for female combinatorialists being organized by Georgia Benkart, Monica Vazirani and Stephanie van Willigenburg.
  • Richard Ehenborg is a one hour invited speaker for the FPSAC 2011 in Reykjavik, Iceland. This is the 23rd International Conference on Formal Power Series and Algebraic Combinatorics.

2009-2010 and before

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