## Victor Shaprio Lecture Series

### Victor Shapiro

#### Upcoming Lecture:

**May 29 ^{th}, 2019**

Skye Hall 284

Coffee/Tea & Fruit/Pastries Served: 3:40 p.m.

Lecture: 4:10 - 5:00 p.m.

Reception: 5:20 p.m.

**Dr. Jeffrey Lagarias**

**Professor of Mathematics**

**University of Michigan, Ann Arbor**

**Addition versus Multiplication**

* Abstract:* We consider the positive integers and ask the (vague) question: “Does addition get along with multiplication?” We view this question via results from the perspectives of: (1) Logic and computational complexity theory, (2) Measure theory and ergodic theory, (3) Diophantine problems (additive number theory), and (4) Digit expansions and primes (multiplicative number theory).

* Bio:* Dr. Jeffrey Lagarias joined the faculty at the University of Michigan in 2004 and became the Harold Mead Distinguished University Professor in 2018. He earned his bachelor's, master's and, in 1974, his Ph.D. in mathematics from the Massachusetts Institute of Technology, where he was a Putnam Fellow in 1970. Prior to joining academia, he worked for AT&T Bell Laboratories.

Dr. Lagarias' training was in number theory. His research interests also include discrete geometry, dynamical systems, mathematical optimization, harmonic analysis, computational complexity and mathematical physics. He has authored more than 200 publications with more than 100 collaborators worldwide and has edited four books.

Dr. Lagarias is a Fellow of the American Mathematical Society (AMS), the Society for Industrial and Applied Mathematics (SIAM) and the American Association for the Advancement of Science (AAAS). His career honors include the AMS Levi Conant Prize in 2014, and the Mathematical Association of America (MAA) Paul R. Halmos-Lester R. Ford Award in 1986 and 2007.

#### Previous Lecture:

### Dr. Paul Baum, Evan Pugh Professor at Penn State - 2016

#### Remembering a Distinguished Mathematician, Colleague and Friend : Dr. Victor Shapiro

On Behalf of Interim Chancellor Jane Close Conoley, University of California, Riverside:

I regret to inform you that Dr. Victor Shapiro, 88, a professor emeritus of mathematics, died on March 1, 2013. He taught mathematics at UC Riverside for 46 years.

An expert on trigonometric series and differential equations, Dr. Shapiro was internationally recognized for several solutions to specific problems in mathematics. One reviewer wrote that he was "this country's leading authority on Multiple Trigonometric Series." He was the author of more than 80 research articles and several books. He continued to conduct research, write, and teach even after his retirement in 1994.

In 2012, he was named a fellow of the American Mathematical Society for outstanding contributions to the creation, exposition, advancement, communication and utilization of mathematics.

Dr. Shapiro was born on October 16, 1924. He received a B.S. in 1947, an M.S. in 1949, and a Ph.D., all in mathematics, from the University of Chicago. Before joining UCR in 1964 as a full professor, Dr. Shapiro spent five years on the faculty at Rutgers, four years at the University of Oregon, and three years at the Institute for Advanced Study in Princeton. In 1978 he was selected by the Academic Senate to deliver the Faculty Research Lecture.

He is survived by his wife, Florence Shapiro, two daughters, and two sons.

#### Background on the Victor Shapiro Distinguished Lecture in Mathematics Series

This lecture series in Victor Shapiro's name was originally started because Professor Michel Lapidus wanted to bring Sir Michael Berry from England as a lecturer to UCR. He thought since Professor Shapiro had been the 1978 Faculty Research Lecturer at UCR (an Appointment made by the Academic Senate once every year), it would be approved. The tradition of inviting distinguished lecturers continues to this day. There have been 5 lecturers in the Shapiro Distinguished lecture series since the first one in 1998.