# Featured Stories

## Julia Robinson Math Festival

Saturday, November 23 2019

9:30 am to noon

Central Library, Lexington

140 East Main Street

2nd Floor Atrium

For details, see the UK Julia Robinson Math Festival website

## Nathan Druivenga Receives A&S Outstanding Teacher Award

By Maddi Dyment

The UK College of Arts and Sciences would like to congratulate Dr. Nathan Druivenga, arecipient of the A&S Outstanding Teacher Award! Druivenga is a lecturer for the Mathematics Department at the University of Kentucky. Since beginning his teaching career at UK in 2016, he maintains a large focus on teaching introductory-level math courses. Druivenga received his master’s degree from Indiana University and his Ph.D. in Mathematics from the University of Iowa. His research specializes in quantum topology with a focus on knot invariants.

## UK's Association for Women in Mathematics Student Chapter Wins AWM Award

*From the Association for Women in Mathematics.*

## Hayden-Howard Lecture

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**Title: Lifted Representations of Convex Sets**

Abstract: A common theme in many areas of mathematics is to find a simpler representation of an object indirectly by expressing it as the projection of an object in some higher-dimensional space. In 1991 Yannakakis proved a remarkable connection between a lifted representation of a polytope and the nonnegative rank of a matrix associated to the polytope. In recent years, this idea has been generalized to cone lifts of convex sets, with applications in, and tools coming from, many areas of mathematics and theoretical computer science. This talk will survey the central ideas, results, and questions in this field.

About the Hayden-Howard lecture: The Hayden-Howard lecture was inaugurated in the spring of 2001 by a generous contribution from a friend of the Department of Mathematics. The lecture series was established in honor of mathematics professors Thomas Hayden and Henry Howard. Each year, the lecture series brings a research mathematician of international stature to the University of Kentucky.

Previous Hayden-Howard lecturers
- 2018-19, Laura DeMarco, Northwestern University
- 2017-18, Mike Hill, University of Califormia, Los Angeles
- 2016-17, Carlos Castillo-Chavez, Arizona State University and Yachay Tech University, Ecuador.
- 2015-16, Yitang Zhang, University of New Hampshire
- 2014-15, Robert Lazarsfeld, State University of New York at Stony Brook
- 2013-14, Jill Pipher, Brown University
- 2012-13, Michelle Wachs, University of Miami
- 2011-12, Doug Ravenel, University of Rochester
- 2010-11, Luis Vega, Universidad del Pais Vasco
- 2009-10, David Eisenbud, University of California at Berkeley
- 2008-09, Carlos Kenig, University of Chicago
- 2007-08, Joachim Rosenthal, University of Zurich
- 2006-07, John Neuberger, University of North Texas
- 2005-06, Fang-hua Lin, New York University
- 2004-05, Gang Tian, Princeton University and MIT
- 2003-04, Doron Zeilberger, Rutgers University
- 2002-03, Craig Huneke, University of Kansas
- 2001-02, Craig Evans, University of California at Berkeley
- 2000-01, Richard Stanley, MIT

## Mathematics Lab Gives Undergraduates a New Perspective on Their Field

By Hannah Edelen

*Assistant Professor of Mathematics Christopher Manon (center) works with students in the math lab. Photos by Kris Chappel and Wayne Cross.*