{"606955":{"#nid":"606955","#data":{"type":"news","title":"Math Undergraduate Research Roundup ","body":[{"value":"\u003Cp\u003EAll over campus this summer, undergraduates are working with Georgia Tech researchers. Many programs are in \u003Ca href=\u0022http:\/\/www.cos.gatech.edu\/hg\/item\/606710\u0022\u003Efull swing\u003C\/a\u003E, modeled after\u0026nbsp;the\u0026nbsp;\u003Ca href=\u0022https:\/\/www.nsf.gov\/funding\/pgm_summ.jsp?pims_id=5517\u0026amp;from=fund\u0022\u003EResearch Experiences for Undergraduates (REU) program\u003C\/a\u003E\u0026nbsp;of the National Science Foundation (NSF).\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe School of Mathematics likely takes the prize for the most number of programs by one unit: six.\u0026nbsp; By summer\u0026rsquo;s end, seven\u0026nbsp;professors, three postdoctoral mentors, and five\u0026nbsp;graduate students would have worked with 13 undergraduate students. The undergrads come from 11 colleges and universities, including three in Georgia: Agnes Scott College, Georgia Tech, and Spelman College.\u0026nbsp; \u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFunding comes from various NSF grants and the School of Mathematics.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EWhy REUs\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EREU programs play the same role for research careers as high school sports do for the NFL and NBA, says School of Mathematics Professor \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~ib\/\u0022\u003EIgor Belegradek\u003C\/a\u003E. Talent presenting early must be nurtured and honed as soon as possible.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EBelegradek organized the summer 2018 REUs with colleague \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~dmargalit7\/index.shtml\u0022\u003EDan Margalit\u003C\/a\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026ldquo;We have a rich history of undergraduate research in mathematics, as you can see on our \u003Ca href=\u0022http:\/\/www.math.gatech.edu\/undergraduate-research\u0022\u003Ewebsite\u003C\/a\u003E,\u0026rdquo; Margalit says. \u0026ldquo;It\u0026rsquo;s a testament to our faculty\u0026rsquo;s intellectual creativity and dedication to undergraduate education.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EREUs have important benefits for students, faculty mentors, and the School of Mathematics.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThey help bring students to the School\u0026rsquo;s graduate program. They enable members of underrepresented minorities get advanced training and positive experiences in math research.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EREUs advance the research of faculty. \u0026ldquo;We give students problems that we are genuinely interested in,\u0026rdquo; Margalit. \u0026ldquo;They are integral to our research programs.\u0026rdquo;\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EREUs also provide mentoring experience to early-career researchers \u0026ndash; graduate students and postdoctoral researchers \u0026ndash; serving as mentors. \u0026ldquo;The training is valuable for them,\u0026rdquo; Margalit says. \u0026ldquo;It helps give them confidence in their own research and make them marketable for job searches.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EUndergraduates\u0026rsquo; ability to penetrate difficult problems inspires Margalit. \u0026ldquo;They are fearless and creative, trying approaches that I might not think of,\u0026rdquo; he says. \u0026ldquo;They might not understand every bit of background that goes into a problem. But we, as mentors, can airlift them to the front lines\u0026nbsp;of the problem.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cblockquote\u003E\r\n\u003Cp\u003E\u003Cem\u003EUndergraduates \u0026quot;are fearless and creative, trying approaches that I might not think of. They might not understand every bit of background that goes into a problem.\u0026nbsp;But we, as mentors, can airlift them to the front lines of the problem.\u0026quot; \u003C\/em\u003EDan Margalit\u003C\/p\u003E\r\n\u003C\/blockquote\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECutting-Edge Research\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAlthough Margalit\u0026rsquo;s program \u0026ndash; on mapping class groups \u0026ndash; has six students, other REUs have only one or two students. Three began as early as May 21; one will last until Aug. 10. In sessions lasting from five to seven weeks, the mathematicians will tackle problems in various cutting-edge areas.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFollowing are two examples of problems Georgia Tech undergrads\u0026nbsp;will be confronting.\u003C\/p\u003E\r\n\r\n\u003Cul\u003E\r\n\t\u003Cli\u003E\u003Cstrong\u003EShadow Problem\u003C\/strong\u003E\u003C\/li\u003E\r\n\u003C\/ul\u003E\r\n\r\n\u003Cp\u003E\u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~ghomi\u0022\u003EMohammad Ghomi\u003C\/a\u003E has been working with Georgia Tech undergraduate \u003Cstrong\u003EAlexander Avery\u003C\/strong\u003E since May 21. From Ghomi\u0026rsquo;s list of \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~ghomi\/Papers\/op.pdf\u0022\u003Eopen problems in geometry of curves and surfaces\u003C\/a\u003E, Avery chose the \u0026ldquo;shadow problem\u0026rdquo; for surfaces.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EGhomi explains the problem thus: Consider a convex object, such as a ball or an egg. When such object is illuminated from any direction, the dark region of the surface, called the shadow, forms a connected set. In other words, the shadow is one piece.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EWhat about the converse? Suppose the shape of a surface is unknown. And suppose the shadow is one piece when illuminated from any direction. Does it follow that the surface is convex?\u003C\/p\u003E\r\n\r\n\u003Cp\u003EGhomi published a solution in \u003Ca href=\u0022http:\/\/annals.math.princeton.edu\/articles\/6069\u0022\u003E\u003Cem\u003EAnnals of Mathematics\u003C\/em\u003E\u003C\/a\u003E in 2002. The answer is yes for surfaces similar to balls and eggs. But not for other shapes, such as donuts.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026ldquo;Alex is working on the discrete version of this problem,\u0026rdquo; Ghomi says. Avery is looking at surfaces that are not smooth \u0026ndash; like balls and eggs \u0026ndash; but instead are composed of polygons glued along their edges. \u0026ldquo;Alex has been making good progress. It looks like the polyhedral case will be similar to the smooth case.\u0026rdquo; \u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cul\u003E\r\n\t\u003Cli\u003E\u003Cstrong\u003ELegendrian Knots\u003C\/strong\u003E\u003C\/li\u003E\r\n\u003C\/ul\u003E\r\n\r\n\u003Cp\u003E\u0026ldquo;In mathematics, knots can be thought of as pieces of string which are tied up and then have the ends glued together,\u0026rdquo; says Caitlin Leverson, one of the postdoctoral mentors. \u0026ldquo;An interesting problem is to decide whether two knots are the same or different.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ELegendrian knots satisfy additional conditions. Two Legendrian knots may look very different, but be the same. Invariants are methods of assigning values to knots so that two knots are assigned the same value if they are the same.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFrom May 29 to Aug. 10, Leverson will be working with two Georgia Tech fourth-year mathematics majors: \u003Cstrong\u003EDeVon Ingram\u003C\/strong\u003E and \u003Cstrong\u003EHunter Vallejos\u003C\/strong\u003E. Their goal is to find Legendrian knots that are different yet are assigned the same value by the invariant.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;Since his second year as a mathematics major, Ingram has done research with different professors, including outside the School of Mathematics. For example, he worked on computational complexity theory with\u0026nbsp;\u003Ca href=\u0022https:\/\/www.cc.gatech.edu\/people\/lance-fortnow\u0022\u003ELance Fortnow\u003C\/a\u003E, professor and chair, School of Computer Science.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIngram appreciates the beauty of differential geometry and its relation to physics. He sees correspondence between knot invariants and topological quantum field theories. Because of these interests, \u0026ldquo;I am naturally drawn to a knot theory problem,\u0026rdquo; he says.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EVallejos has been doing research since he was in Oak Ridge High School, in Oak Ridge, Tennessee, just 10 miles from Oak Ridge National Laboratory (ORNL). One outcome of his stints at ORNL is a\u0026nbsp;\u003Ca href=\u0022https:\/\/link.springer.com\/epdf\/10.1007\/s11403-017-0200-9?author_access_token=qFJoW3r9MyaQ7N36b7f6Fve4RwlQNchNByi7wbcMAY5jaP7cxnQ5X4zpKF3-OF7mFJ9CMXdgDL5lGFey5VwMT9jLQV4Lm7Wk-cgUpsuKn8ftD3PzoGMQ8bxpHdD1Wdx-QNiYJaAYMEfA2tTEi9XrNQ%3D%3D\u0022\u003E2017 paper in the Journal of Economic Interaction and Coordination\u003C\/a\u003E, of which Vallejos was first author.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026ldquo;I love when algebra, geometry, and topology intersect,\u0026rdquo; Vallejos says. \u0026ldquo;Legendrian knot theory blends these three distinct fields, which makes it a rich subject to study.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EVisiting Students\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESeveral of the undergraduate researchers this summer come from outside Georgia Tech. Among them are Johannes Hosle and Andrew Sack.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EJohannes Hosle\u003C\/strong\u003E hails from South Bend, Indiana. He is a third-year math major in the University of California, Los Angeles. His major interests are analysis and number theory. Starting on June 18, he will work with \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~glivshyts6\/\u0022\u003EGalyna Livshyts\u003C\/a\u003E and \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~lacey\/\u0022\u003EMichael Lacey\u003C\/a\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026ldquo;The general area of my problem will be in harmonic analysis in convex geometry,\u0026rdquo; Hosle says. \u0026ldquo;My interest stems from a general interest in analysis. The types of problems in this branch of mathematics seem to resonate most with me.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAndrew Sack\u003C\/strong\u003E hails from Gainesville, Florida. He is a fourth-year mathematics major from the University of Florida. A published author in the \u003Ca href=\u0022http:\/\/ijmcs.future-in-tech.net\/12.2\/R-HellerSack.pdf\u0022\u003EInternational Journal of Mathematics and Computer Science\u003C\/a\u003E, he is one of two students who have been working with \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~etnyre\/\u0022\u003EJohn Etnyre\u003C\/a\u003E and \u003Ca href=\u0022http:\/\/people.math.gatech.edu\/~skolay3\/\u0022\u003ESudipta Kolay\u003C\/a\u003E since May 30. \u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EEtnyre also studies how to tell knots apart. In his approach, a knot is represented by a diagram of a loop on a paper. The loop can cross over itself as many times. \u0026ldquo;But each time the loop crosses over itself, you have to specify which of the two strands is on top of the other,\u0026rdquo; Etnyre says.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EA coloring of a knot is a labeling of the strands by a method that has consistency at the crossings. The coloring can tell two knots apart. \u0026ldquo;The work is related to research trying to figure out how three-dimensional spaces can be put inside a five-dimensional space.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u0026ldquo;I\u0026rsquo;m interested in this research because, after taking two years of topology, I find it fascinating,\u0026rdquo; Sack says. \u0026ldquo;Previous research I\u0026rsquo;ve done centered on graph coloring. I can use some of the intuition I built around graph coloring to help better understand knot coloring.\u0026rdquo;\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":[{"value":"Seven professors work with 13 undergrads in 2018 summer programs "}],"field_summary":[{"value":"\u003Cdiv\u003E\r\n\u003Cp\u003EThis summer, the School of Mathematics continues its rich history of undergraduate research, which\u0026nbsp;testifies to faculty\u0026rsquo;s intellectual creativity and dedication to undergraduate education.\u003C\/p\u003E\r\n\u003C\/div\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Seven professors work with 13 undergrads in 2018 summer programs."}],"uid":"30678","created_gmt":"2018-06-12 16:15:57","changed_gmt":"2019-02-12 19:54:29","author":"A. 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