News

Adding & Counting
Published Date: 2011-01-21
During The Number Theory of Partitions Conference, the Department of Mathematics and Computer Science is pleased to announce that Dr. Ken Ono will be giving a public lecture on Additing and Counting. For more information on this lecture, please visit the poster here
Professor Ron Gould featured on Discoveries and Breakthroughs Inside Science
Published Date: 2011-01-20
Please click here to see the segment.
The Math of your Heart
Published Date: 2010-12-14
Check out the new video of how the Veneziani lab is using math to model blood dynamics and help physicians solve problems in the cardiovascular system: http://esciencecommons.blogspot.com/2010/12/math-of-your-heart.html>
Atlanta Lecture Series in Combinatorics and Graph Theory to be held November 13-14, 2010
Published Date: 2010-11-12
Atlanta Lecture Series in Combinatorics and Graph Theory

November 13-14, 2010
Emory University
Atlanta, GA, 30322


Emory University, Georgia Tech and Georgia State University, with support from the National Security Agency and the National Science Foundation, will host a series of 9 mini-conferences from 2010-2013. The first of these will be held at Emory University on November 13-14, 2010.

The conferences will stress a variety of areas and feature one prominent researcher giving 2 fifty minute lectures and 4 outstanding southern researchers each giving one fifty minute lecture. There will also be several 25 minute lecturers by young reseachers or graduate students.

The Featured Speaker is Benny Sudakov, UCLA

For more information, click here
Number Theory REU at Emory
Published Date: 2010-11-09
Ken Ono, an Asa Griggs Candler Professor of Mathematics, will be running an NSF funded Research Experience for Undergraduates in 2011. The program, entitled Number Theory: Primes and Partitions, and Modular Forms, will be a 7-8 program for 8-10 talented undergraduate math majors. Professor Ono has been running REUs for many years, and the experience he brings to Emory will inspire motivated mathematics majors. Since 2005, his REU students have won three Frank and Brennie Morgan Prizes (awarded to the best undergraduate mathematics major in the nation), and three Alice T. Schafer Prizes (awarded to the best undergraduate woman in mathematics in the nation). For more information on the program, see www.mathcs.emory.edu/~ono/REUs/>
Math/CS Tech Support Job Opening
Published Date: 2010-10-29
Primary duties are to support the teaching and research missions of the department in Computer Science, Scientific Computing, and Mathematics, as well as support for department administration. This involves both support of departmental infrastructure and collaboration/assistance with research projects, teaching initiatives, and administrative staff. For more information and to apply online go to the following URL and search for job #17575. http://emory.hr.emory.edu/careers/index.html
5 out of the 6 best jobs are Math/CS jobs, according to the Wall Street Journal
Published Date: 2010-10-21
The top 6 jobs in the Wall Street Journal's list of best and worst jobs in the United States are: mathematician, actuary, statistician, biologist, software engineer, and computer systems analyst. For 5 out of 6 top positions, the natural preparation begins with a major in the Department of Mathematics and Computer Science.

The full article can be found on the Wall Street Journal website for the original article.
New MathCS Faculty Members: Ken Ono and Valerie Summet
news Published Date: 2010-08-25
The department is excited to welcome new faculty members Ken Ono and Valerie Summet. Ken Ono joins us as Asa Griggs Candler Professor of Mathematics. This fall, he is teaching a graduate course in number theory. Valerie Summet is a computer scientist specializing in Human-Computer Interaction; she is teaching computer science with business applications and a freshman seminar in robotics.
East Coast Computer Algebra Day - ECCAD 2010 to be held on May 15, 2010
Published Date: 2010-05-11
Saturday, May 15, 2010
Math & Science Center
Emory University
Atlanta, GA

East Coast Computer Algebra Day (ECCAD) is an informal meeting for those active or interested in computer algebra. It provides opportunities to learn and to share new results and work in progress. Researchers, teachers, students, and users of computer algebra are all welcome!

Registration begins at 8:00 a.m. in the second floor atrium

For more information, please visit http://mathcs.emory.edu/eccad2010/

Professor Skip Garibaldi profiled on Emory's eScienceCommons
news Published Date: 2010-03-22
Rock climber takes on surfer's theory


The “exceptionally simple theory of everything,” proposed by a surfing physicist in 2007, does not hold water, says Emory mathematician Skip Garibaldi.

Garibaldi, a rock climber in his spare time, did the math to disprove the theory, which involves a mysterious structure known as E8. The resulting paper, co-authored by physicist Jacques Distler of the University of Texas, will appear in an upcoming issue of Communications in Mathematical Physics.

“The beautiful thing about math and physics is that it is not subjective,” Garibaldi says. “I wanted a peer-reviewed paper published, so that the scientific literature provides an accurate state of affairs, to help clear up confusion among the lay public on this topic.”

In November of 2007, physicist Garret Lisi published an online paper entitled “An Exceptionally Simple Theory of Everything.” Lisi spent much of his time surfing in Hawaii, adding an alluring bit of color to the story surrounding the theory. Although his paper was not peer-reviewed, and Lisi himself told the Daily Telegraph that the theory was still in development and he gave a "low" likelihood to the prediction, the idea was widely reported in the media, under attention-grabbing headlines like “Surfer dude stuns physicists with theory of everything.”

Garibaldi was among the skeptics when the theory hit the news. So was Distler, a particle physicist, who wrote about problems he saw with Lisi’s idea on his blog. Distler’s posting inspired Garibaldi to think about the issue more, eventually leading to their collaboration.

Lisi’s paper centered on the elegant mathematical structure known as E8, which also appears in string theory. First identified in 1887, E8 has 248 dimensions and cannot be seen, or even drawn, in its complete form.E8-inspired graph. Credit: Wikimedia Commons, J. G. Moxness, an emulation of a hand-drawn original by Peter McMullen.

The enigmatic E8 is the largest and most complicated of the five exceptional Lie groups, and contains four subgroups that are related to the four fundamental forces of nature: the electromagnetic force; the strong force (which binds quarks); the weak force (which controls radioactive decay); and the gravitational force.

In a nutshell, Lisi proposed that E8 is the unifying force for all the forces of the universe.

“That would be great if it were true, because I love E8,” Garibaldi says. “But the problem is, it doesn’t work as he described it in his paper.” As a leading expert on several of the exceptional Lie groups, Garibaldi felt an obligation to help set the record straight.

“A lot of mystery surrounds the Lie groups, but the facts about them should not be distorted,” he says. “These are natural objects that are central to mathematics, so it’s important to have a correct understanding of them.”

Using linear algebra and proving theorems to translate the physics into math, Garibaldi and Distler not only showed that the formulas proposed in Lisi’s paper do not work, they also demonstrated the flaws in a whole class of related theories.

“You can think of E8 as a room, and the four subgroups related to the four fundamental forces of nature as furniture, let’s say chairs,” Garibaldi explains. “It’s pretty easy to see that the room is big enough that you can put all four of the chairs inside it. The problem with ‘the theory of everything’ is that the way it arranges the chairs in the room makes them non-functional.”

He gives the example of one chair inverted and stacked atop another chair.

“I’m tired of answering questions about the ‘theory of everything,’” Garibaldi says. “I’m glad that I will now be able to point to a peer-reviewed scientific article that clearly rebuts this theory. I feel that there are so many great stories in science, there’s no reason to puff up something that doesn’t work.”

click here for the original article