## News Archive

**Congratulations to Dr. Yongki Lee for selected to be one of the two Outstanding Visiting Assistant Professors 2015-2016**Dr. Yongki Lee’s general research interests lies in the area of applied mathematics. He is interested in analysis of time-dependent partial differential equations, with applications in mathematical models of fluid, traffic flow and collective motion of biological cells. He is currently exploring a threshold phenomenon on Euler-Poisson system which may shed light on long-standing questions in hyperbolic partial differential equations. In this summer, he will be speaking at a colloquium at Chiang Mai university in Thailand, and HYP2016 conference in Germany.

In his first year at UCR, he was very excited to teach large classes so he rehearsed his teachings in an empty classroom everyday before his teachings.

His top priority in teaching is to keep the class interesting. As an applied math researcher and former navy officer, whenever a topic is relevant, he tries to show students how mathematics applies to everyday life and military science.**UCR Math Grad Awarded NCST Fellowship**We are very happy to announce that our graduate student Joshua Buli is recently awarded a fellowship by the NCST.

The National Center for Sustainable Transportation (NCST) Graduate Fellowship is granted by the NCST which is a consortium of 5 universities, supported by the U.S. Department of Transportation's Office of the Secretary for Research and Technology under the University Transportation Centers (UTC) program. The fellowship is awarded to graduate students who are working on Transportation Research, and provides funding for the 2016-2017 academic year.

Joshua Buli's Ph.D. advisor is Dr. Yulong Xing. They are working on numerical methods for hyperbolic conservation laws and stochastic partial differential equations. Josh is also a GSR collaborating in the Economics department under supervision of Dr. Richard Arnott, working on numerical methods associated with traffic flow dynamics, and the economic costs associated with traveling in congested rush hour traffic.

His dissertation will be on topics in numerical methods for stochastic traffic dynamics, which will combine aspects of both research areas.**Strings 2016**The Strings conference is an annual event that brings the entire string theory community together. Since the 1980s, it has grown to be the largest and most important conference in the field. The aim is to review recent developments in string theory and to stimulate scientific exchanges among the participants. This year, it will take place at Beijing from August 1 to August 5, 2016. The speakers include R. Dijkgraaf, D. Gross and E. Witten.

For details, please visit its website: http://ymsc.tsinghua.edu.cn:8090/strings/?page_id=49?

Dr. Yat Sun Poon of UC Riverside Math is one of its organizers. For more on Dr. Poon’s activities, visit his website: http://ypoon.ucr.edu/**2016 Kramer Award Recipients**Dr. Vernon A. Kramer (1924-1985) taught for and helped develop the Mathematics Department at UCR. His colleagues created this memorial to honor Dr. Kramer's memory. They noted that “it takes a great deal of effort for our department to accomplish all that it does. We are thankful that we have such a large contingent of graduate students who are more than willing and able to not only contribute to the department, but to also go the extra mile. When a graduate student consistently steps up to help other grads and instructors, help with events, attend recruitment fairs, and more, we put forth the effort to recognize and thank him or her with the Vernon A. Kramer Memorial Service Award.”

The recipients for 2015-2016 are Andrea Arauza, Donna Blanton and Robert Willett (pictured in order).**Dr. Michael Hartglass named Outstanding Visiting Assistant Professor 2015-2016**Congratulations to Dr. Michael Hartglass to be named an Outstanding Visiting Assistant Professor in the Math Department for 2015-2016 for his outstanding teaching record and service to the department.

Dr. Hartglass research interest is in the area of free probability with applications to subfactors and operator algebras. He uses the tools of free probability to study combinatorial objects called planar algebras, objects that were invented by Jones to facilitate the study of subfactor theory. Specifically, he uses free probability to compute non-commutative topological and measure-theoretic aspects (e.g. K-theory) of algebras arising from planar algebras. He has given talks at several conferences, including two AMS joint meetings, two AMS sectional meetings. He has also given research talks at several universities, including UCLA, Texan A&M, and Purdue.

Dr. Hartglass has been the instructor for several mathematics courses at UC Riverside, including all levels of calculus, linear algebra, and discrete math. In addition to his classroom responsibility, he mentored three graduate students in an operator algebras reading course in the spring of 2015. Along with David Weisbart, Alexander Henderson, and Thomas Schellhous, he served as a judge at the Riverside USD science fair. He will also offer a math subject GRE prep-course in the fall of 2016 for UCR graduating seniors.**Dr. Pamela Clute Remembered**The Math Department is saddened by the news that Dr. Pamela Clute passed away on August 21, 2016.

Beyond her extensive outreach activities and administrative obligations, Dr. Clute has been a long time senior lecturer for the Department of Mathematics. She taught Math 15 (Contemporary Mathematics for the Humanities, Arts, and Social Sciences) as late as 2014.

For more information on Dr. Clute, please see https://ucrtoday.ucr.edu/26753**Dr. Steven Krantz to Speak at UC Riverside Mathematics Department**Dr. Steven Krantz is giving the Colloquium at UCR Math Department on Wednesday, June 1st, 2016. Refreshment will begin at 3:40pm in Surge 284.

His talk will be about “Smoothness to the boundary of biholomorphic mappings”. For abstract, please visit ( provide link to colloquium page).

Among his numerous accomplishment, Dr. Krantz is famous as the author of*How to Teach Mathematics*( http://amzn.com/0821813986 ) and*A Mathematician's Survival Guide: Graduate School and Early Career Development*( http://amzn.com/082183455X ).

For more on Dr. Steve Krantz visit: https://en.wikipedia.org/wiki/Steven_G._Krantz**2016 Summer School and Conference on Fractal Geometry and Complex Dimensions - Celebrating the 60th Birthday of Prof. Michel L. Lapidus**An international 2016 Summer School and Conference on Fractal Geometry and Complex Dimensions - Celebrating the 60th Birthday of Prof. Michel L. Lapidus will be held at California Polytechnic State University, San Luis Obispo, CA, USA.

Dates: Tuesday, June 21, 2016 to Wednesday, June 29, 2016

Mini-courses, plenary lectures and public lectures to be given by:Michael Barnsley (Australia), Kenneth Falconer (UK), Kurt Falk (Germany), Michael van Frankenhuijsen (USA), Uta R. Freiberg (Germany), Ben Hambly (UK), Alan Haynes (UK), Jun Kigami (Japan), Marc Keßeböhmer (Germany), Sabrina Kombrink (Germany), Michel L. Lapidus (USA), Carl Pomerance (USA), Alexander Teplyaev (USA), Martina Zähle (Germany)

Topics of the mini-courses will include: Analysis on fractals, complex dimensions and fractal zeta functions, and a topic related to noncommutative geometry, quasicrystals and/or tilings.

There will also be a number of short contributed talks to be given by participants, a poster session, and open problems sessions. About 100 researchers and students are expected to participate in the event.

This conference is funded by the US National Science Foundation. Please join the organizers to celebrate Prof. Michel L. Lapidus’ 60th birthday and his many contributions to mathematics. For more information, please click to see.**Dr. Paul Baum to Give Talk as Distinguished Lecturer**The Victor L. Shapiro Distinguished Lecture in Mathematics will take place at UCR Mathematics on May 4. The Distinguished speaker this year is Dr. Paul Baum, Evan Pugh Professor of Mathematics at Pennsylvania State University.

He will speak on “What is K-theory and What is it good for?”.

May 5th Dr. Paul Baum Will speak during the Fractal Research Group seminar on "Dirac Operator" and the Mathematical Physics & Dynamical Systems seminar on "Atiyah-Singer Revisited"

Click for more details and links to Dr. Baum's abstracts.**Freshmen Calculus Microtutorials Online**Since 2014, Dr. Yat Sun Poon has been working with graduate students to develop a series of short videos (a.k.a. micro tutorials) to present solutions to word problems in freshman calculus. In these videos the viewers are guided to develop the contents of physical or biological problems into mathematical formulation, and then solve the problem mathematically afterward. This project is funded by UCR Provost’s Office. For more on this project and its products, please visit the website www.microtutorials.ucr.edu.**UCR Math Department Welcomes Prospective Grads on Preview Day**On March 28, the Department hosted its annual Graduate Preview Day to showcase its research program to a group of prospective graduate students. Dr. Qi Zhang, Graduate Advisor for recruitment, organized the event.

For the morning events, six graduate students spoke on their research. In particular, Donna Blanton spoke on representation of Lie algebras; Kaylee Hamann spoke on Greene-Krantz conjecture in complex geometry; John Simanyi highlighted the use of topological invariants in classification of spaces in dimension four and below. Andrea Arauza discussed how ideas from non-communtative geometry are used to study fractal geometry. Jordan Tousignant described how category theory provides a general setting for module theory. Robert Willet introduced, to the audience, the concept of Gromov Hausdorff convergence.

In the afternoon, after Dean Cindy Larive’s welcoming remark, four professors highlighted some of their current research.

Speaker: Kevin Costello Title: The power of randomness Abstract: Sometimes, when you want an object or an algorithm to have certain properties, "close your eyes and pick" turns out to work a lot better than even the most careful of constructions.

Speaker: Daniele Rosso Title: Representation Theory Abstract: Representation Theory is the study of symmetries, combining abstract algebra and linear algebra

Speaker: Amir Moradifam Title: Hybrid Inverse Problems in Medical Imaging Abstract: A brief introduction to Hybrid Inverse problems and Current Density Impedance Imaging will be presented

Speaker: John Baez Title: Network Theory Abstract: The world is full of networks, from electrical circuits to social networks. Only mathematicians can think abstractly enough to study all these networks in a unified way.

**UCR's Dr. Michel Lapidus leads the 2016 Joint Mathematics Meetings in Seattle**Prof. Michel Lapidus was the AMS Associate Secretary in charge of the scientific program and organization of the 2016 Joint Mathematics Meetings (JMM) in Seattle, WA, January 6-9, 2016.

The JMM combines the annual meetings of the American Mathematical Society (AMS) and the Mathematical Association of America (MAA), as well as as hosts sessions of several other mathematics organizations such as ASL (http://www.aslonline.org/index.htm), AWL (www.awm-math.org), NAM (http://www.nam-math.org/), and SIAM (http://www.siam.org/). The JMM is the largest mathematics meeting in the world. This year's meeting has gathered nearly 6,300 participants. It featured many invited addresses, 80 AMS special sessions, and thousands of contributed talks. For further information, click here (http://jointmathematicsmeetings.org/meetings/national/jmm2016/2181_intro).

This is the fourth JMM for which Dr. Lapidus has been the AMS Associate Secretary. The previous ones have been the 2004 JMM in Phoenix, the 2008 JMM in San Diego, as well as the 2012 JMM in Boston, which was the largest mathematics meeting ever of any kind, gathering over 7,300 participants.**Instructional Coach for Val Verde Unified School District Gives Talk at UCR**On March 7, Mr. Michael Towne gave a seminar talk on "Responding to Student Misconceptions to develop Conceptual Understanding”. Michael Towne has taught elementary, middle and high school mathematics and science. He currently serves as the Instructional Coach for Val Verde Unified School District and is a Ph.D. student in the GSOE at UCR and serves as a instructor in the teacher preparation program. Mr. Towne trains teachers, speaks at teacher professional development programs and conferences around the country and is an advocate for improving instructional practice at all levels.On February 9th, UCR hosted the RUSD Science Fair. Visiting Assistant Professor Michael Hartglass and Assistant Professor of Teaching David Weisbart, together with PhD students Alexander Henderson and Thomas Schellhous, represented the Mathematics Department in the judging of the Mathematics & Software category. Tenth grader Preetha Krishnamurthy of King High School was awarded a first place award for her superb work involving the assessment of similarities in object textures and tenth graders Joanna Fernandez-Fuentes and Alejandra Calzada of Poly High School shared a second place award for their insightful collaborative project on precise questioning and answering. All three young researchers show great promise and the judges look forward to hearing about the many accomplishments these students will have in the future.

Professor David Weisbart Led a UCR Math Delegates in an Outreach Program

The awards ceremony was held on February 11th at Bourns Inc. where David Weisbart presented the Mathematics Department's awards. The event was well attended by a very excited audience of students, teachers, and parents.

In photo: Dr. David Weisbart (on the right), members of the board of Riverside Unified School District, and two awardees (on the left).

For more about MSRI, please visit its website msri.org**Mathematical Sciences Research Institute and**The Department of Mathematics of University of California at Riverside is an academic sponsor of the MSRI (the Mathematical Sciences Research Institute). The MSRI is a research center funded by the National Science Foundation. Dr. Mei-Chu Chang is UCR’s liaison to the MSRI.

UC Riverside Mathematics

Each year, UCR sends several graduate students to participate in MSRI’s summer program. In 2016, Mikahl Banwarth-Kuhn will participate in the program “Dynamics of Biological System”; Ryan Moruzzi, Lauren Ruth and Edward Voskanian will participate in the program “An introduction to Character Theory and the MacKay Conjecture”.

For more about MSRI, please visit its website msri.org**Distinguished Professor Mark S. Alber to Join UCR’s Department of Mathematics**The University of California, Riverside, is pleased to announce that Distinguished Professor Mark S. Alber will join the faculty in the CNAS Department of Mathematics effective June 30, 2016. Professor Alber is currently the Vincent J. Duncan Family Professor of Applied Mathematics in the Department of Applied and Computational Mathematics and Statistics at the University of Notre Dame. Professor Alber also serves as the Director of the Interdisciplinary Center for the Study of Biocomplexity at Notre Dame, and is an adjunct professor of medicine at the Indiana University School of Medicine.

Click for more details.**Dr. Carl Mautner Joins UC Riverside Mathematics**Dr. Carl Mautner has joined the department as an Assistant Professor working in pure mathematics. He earned his Ph.D. from the University of Texas at Austin and comes to Riverside after postdoctoral work at Harvard University and the Max Planck Institute for Mathematics.

Dr. Mautner's research lies at the intersection of a number of areas of mathematics, including algebra, geometry, topology and combinatorics. He is currently exploring connections between representation theory, a study of symmetries, and the topology of algebraic varieties, spaces of solutions to algebraic equations. These connections shed light on long-standing questions in representation theory and create new directions of inquiry.**Dr. Amir Moradifam Joins UC Riverside Mathematics**Dr. Amir Moradifam is an assistant professor of mathematics working on Partial Differential Equations, Inverse Problems in Medical Imaging, and Mathematical Biology. He earned his Ph.D. from the University of British Columbia, and did postdoctoral work at Columbia University and the University of Toronto. Dr. Moradifam’s recent research focuses on hybrid inverse problems that aim at combining exterior measurements with interior ones to obtain images with higher resolution and contrast than previously available by classical methods. He is also working on mathematical modeling of cell division in plants.

"The image shows reconstruction of the conductivity of a 2D cross section of human abdomen by Current Density Independence Imaging (CDII) "

**Dr. Yulong Xing Joins UC Riverside Mathematics**Dr. Xing is an assistant professor working in computational mathematics. Prior to joining UCR, he was a staff scientist at Oak Ridge National Laboratory, and held a joint appointment at the University of Tennessee. He works on the design, analysis and implementation of accurate and efficient numerical methods for differential equations arising from science and engineering problems. His current research focus is on the development of high order numerical methods, including finite element discontinuous Galerkin, finite volume and finite difference methods, for various applications in hydraulic engineering, astrophysics, atmosphere and climate science.

**Dr. Vyjayanthi Chari of UCR invited as a Plenary Speaker to the TORA Conference**Texas-Oklahoma Representations and Automorphic forms (TORA) is a series of conferences hosted in rotation by Oklahoma State University, the University of Oklahoma, and the University of North Texas. The TORA meetings bring together the automorphic forms and representation theory community of the South Central region to hear about recent research in automorphic forms and representation theory.

TORA Dates: Friday, April 8 - Sunday, April 10, 2016.

**John Baez to Speak at Winter Meeting of Canadian Mathematical Society**On December 5, 2015, Prof John Baez will give a public lecture at the winter meeting of the Canadian Mathematical Society in Montreal.

The title of his talk is "The answer to the ultimate question of life, the universe, and everything". It is about some curious mathematical properties of the number 42. According to Prof Baez, this is based on a joke by the writer Douglas Adams, in which the number 42 was the answer to the ultimate question. The CMS winter meeting is the primary annual mathematics meeting in Canada. The CMS annual meetings have been running since 1945, so this year marks their 70th anniversary. According to an organizer, the meeting typically has 300-400 participants, but this year will likely set a record -- closer to 500. The public lectures are meant to bring interesting mathematics to a broad audience. They are given by scientists of international renown who are also known for their efforts in mathematics outreach or popularization, or for bridging the gap between mathematics and other disciplines.

For more on this conference and Prof Baez’s talk, visit http://cms.math.ca/Events/winter15/.

Image Source: https://commons.wikimedia.org/wiki/User:Jaksmata#/media/File:Simple_Magic_Cube.svg

**UCR Professor and Grad Give Talks at 9**Seven women from the UCR Mathematics Department participated in the 9th Annual Symposium for Women in Mathematics in Southern California (WiMSoCal) at Pomona College on November 7. The symposium included contributed talks in all areas of mathematics, a plenary lecture, and networking opportunities. Graduate student Lauren Ruth (see photo) and Associate Professor Julie Bergner both gave contributed talks. The other participants were graduate students Andrea Arauza, Donna Blanton, Kayla Murray, and Christina Osborne, and undergraduate students Sarah Belknap and Diana Hamideh.^{th}Annual Women in Math Symposium

**John Baez to Speak at Broadcom**On November 18, 2015, UC Riverside Math Professor John Baez will give a talk on category theory and electrical circuits at Broadcom. Broadcom is a FORTUNE Global 500 company. It is a semiconductor company with more than 11,250 U.S. and 4,100 foreign patents. Prof John Baez has been invited by Broadcom's central engineering group.**Mathematician Named Fellow of American Mathematical Society**Mathematician Vyjayanthi Chari at the University of California, Riverside is one of only 50 mathematical scientists from around the world who have been named fellows of the American Mathematical Society (AMS) for 2016. Chari, a professor of mathematics, is honored for “contributions to the theory of quantum groups and affine Lie algebras, and for service to the mathematical community.”

“Dr. Chari has been well regarded by her colleagues for her contribution to mentoring graduate students and postdocs,” said Yat Sun Poon, the chair of the Department of Mathematics at UC Riverside. “She is well known among Lie theorists, and very well cited. She is leading UC Riverside’s Lie theory research group, and beyond. We are proud of her achievement, and feel fortunate that she is on our faculty.”**The 2014–15 Graduate Dissertation**Each year the Graduate Council and Graduate Division present the Doctoral Dissertation Advisor/Mentor Award to one or two UCR faculty members who have made outstanding contributions to the training of advanced graduate students. It is my pleasure to announce that this year’s winner is Vyjayanthi Chari. Dr. Vyjayanthi Chari is a Professor in the Department of Mathematics. She received her BS (1976) and PhD (1988) in Mathematics from Bombay University. She has been at UCR since 1991, where she started as an Associate Professor and is presently investigating new directions in Lie Theory. Over the years, Dr. Chari has mentored an impressive number of graduate students—27 in total; however, her students uniformly report that Dr. Chari provided timely guidance for professional, educational, and personal matters. Many students cited Dr. Chari as one of the most influential people in their lives. Furthermore, it is clear both from the eloquent nature of the supporting letters and the prestigious positions held by those who wrote them that Dr. Chari produces articulate, successful mentees. For her many efforts in mentoring graduate students, she is being honored with the Doctoral Dissertation Advisor/Mentor Award.

Mentoring Award: Professor Vyjayanthi Chari**UCR Grad Awarded Fulbright Fellowship**UC Riverside's Mathematics Department is proud to announce graduate student Matthew O'Dell has been awarded a graduate level Fulbright U.S. Student Program Fellowship. His Ph.D. supervisor, Dr. Vyjayanthi Chari, and Matthew's thesis is on topics in the Representation Theory of The Current Algebra. Matthew will pursue certain aspects of the subject during the 2015-2016 academic year at the University of Cologne, North Rhine-Westphalia, Germany.**Professor Emeritus Neil Gretsky Remembered**Colleagues, I am saddened to report that Professor Emeritus of Mathematics Neil Gretsky passed away on September 21, 2015, in Lomita, Calif. He was 74 years old.

Professor Gretsky joined the faculty in the Department of Mathematics in 1967 and retired in 2005. He was granted emeritus status in 2006. He also served as a visiting faculty member in the UCLA Department of Economics.

Born in Boston, Mass., he received a four-year Merit Scholarship to attend Caltech, where he earned his B.S. in mathematics in 1962. He earned his M.S. in 1964, followed by his Ph.D. in 1967, both in mathematics at Carnegie-Mellon University. He was a member of the American Mathematical Society, the Mathematical Association of America and the American Civil Liberties Union.

Professor Gretsky was a resident of Hermosa Beach for more than 45 years and was a local surfer and volleyball player who earned a second-degree black belt in karate. He wrote about jazz music for the Easy Reader newspaper for many years.

He is survived by his former wife Terry Gretsky, sons Aaron and Miles Gretsky, step-daughter Cindy Adams and her husband Marshall Adams, sister Nancy Gretsky-Bassel and her husband Howard Bassel, nephews Noah Bassel and Timothy Read, ex-wife Patricia Hogan, and step-grandchildren Taylor and Carolyn Adams. His extended family and friends shared with us that they loved him and will greatly miss him. He was an amazing person with a zest for life, the beach, mathematics, game theory, a keen intellect, knowledgeable on many topics, extraordinarily kind and an especially true friend.

His family and friends are planning to honor him with a paddle out in the ocean next summer.

Cynthia K. Larive, Ph.D.

Interim Dean

College of Natural and Agricultural Science