Shmuel Agmon (; 2 February 1922 – 21 March 2025) was an Israeli mathematician who was known for his work in

analysis Analysis (: analyses) is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle (38 ...

and

partial differential equations In mathematics, a partial differential equation (PDE) is an equation which involves a multivariable function and one or more of its partial derivatives. The function is often thought of as an "unknown" that solves the equation, similar to how ...

Biography

Shmuel Agmon was born in

Tel Aviv Tel Aviv-Yafo ( or , ; ), sometimes rendered as Tel Aviv-Jaffa, and usually referred to as just Tel Aviv, is the most populous city in the Gush Dan metropolitan area of Israel. Located on the Israeli Mediterranean coastline and with a popula ...

to writer Nathan Agmon and Chaya Gutman, and spent the first years of his life in

Nazareth Nazareth is the largest Cities in Israel, city in the Northern District (Israel), Northern District of Israel. In its population was . Known as "the Arab capital of Israel", Nazareth serves as a cultural, political, religious, economic and ...

. A member of the

HaMahanot HaOlim Hamahanot Haolim (, ) is an Israeli youth study group with Zionist and socialist philosophy. Founded in 1926, there are currently over fifty branches and over 10,000 members throughout Israel. Hamahanot Haolim's aim is to better Israeli society by ...

youth movement, Agmon studied at the

Gymnasia Rehavia Rehavia Gymnasium or the Jerusalem Rehavia Gymnasium, by its Hebrew name Gymnasia Rehavia (), is a high school in the Rehavia neighborhood in West Jerusalem. History The high school's initial name was the Hebrew Gymnasium in Jerusalem. Gymnasia ...

and joined a

hakhshara Hakhshara (; also transliterated Hachsharah, Hachshara or Hakhsharah) is a Hebrew word that literally means "preparation". The term is used for training programs and agricultural centres in Europe and elsewhere. At these centers Zionist youth movem ...

program at Kibbutz Na'an after graduating from high school. He began his studies in mathematics at the

Hebrew University of Jerusalem The Hebrew University of Jerusalem (HUJI; ) is an Israeli public university, public research university based in Jerusalem. Co-founded by Albert Einstein and Chaim Weizmann in July 1918, the public university officially opened on 1 April 1925. ...

in 1940 but enlisted in the

Jewish Brigade The Jewish Infantry Brigade Group, more commonly known as the Jewish Brigade Group or Jewish Brigade, was a military formation of the British Army in the World War II, Second World War. It was formed in late 1944 and was recruited among Yishuv, Y ...

of the

British Army The British Army is the principal Army, land warfare force of the United Kingdom. the British Army comprises 73,847 regular full-time personnel, 4,127 Brigade of Gurkhas, Gurkhas, 25,742 Army Reserve (United Kingdom), volunteer reserve perso ...

before graduating. He served for four years in Cyprus, Italy and Belgium during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. After his discharge, he completed his undergraduate and master's degrees at the Hebrew University and went to France for further studies. He obtained a

PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...

from

Paris-Sorbonne University Paris-Sorbonne University (also known as Paris IV; ) was a public university, public research university in Paris, France, active from 1971 to 2017. It was the main inheritor of the Faculty of Humanities of the University of Paris. In 2018, it m ...

in 1949, under the supervision of

Szolem Mandelbrojt Szolem Mandelbrojt (10 January 1899 – 23 September 1983) was a Polish-French mathematician who specialized in mathematical analysis. He was a professor at the Collège de France from 1938 to 1972, where he held the Chair of Analytical Mechanics ...

. He returned to

Jerusalem Jerusalem is a city in the Southern Levant, on a plateau in the Judaean Mountains between the Mediterranean Sea, Mediterranean and the Dead Sea. It is one of the List of oldest continuously inhabited cities, oldest cities in the world, and ...

after working as a

visiting scholar In academia, a visiting scholar, visiting scientist, visiting researcher, visiting fellow, visiting lecturer, or visiting professor is a scholar from an institution who visits a host university to teach, lecture, or perform research on a topic fo ...

Rice University William Marsh Rice University, commonly referred to as Rice University, is a Private university, private research university in Houston, Houston, Texas, United States. Established in 1912, the university spans 300 acres. Rice University comp ...

from 1950 to 1952, and was appointed

full professor Professor (commonly abbreviated as Prof.) is an academic rank at universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a 'person who professes'. Professors ...

at the Hebrew University in 1959. Agmon died on 21 March 2025, at the age of 103.

Work

Agmon's contributions to partial differential equations include Agmon's method for proving exponential decay of eigenfunctions for elliptic operators.

Awards

Agmon was awarded the 1991

Israel Prize The Israel Prize (; ''pras israél'') is an award bestowed by the State of Israel, and regarded as the state's highest cultural honor. History Prior to the Israel Prize, the most significant award in the arts was the Dizengoff Prize and in Israel ...

in mathematics. He received the 2007

EMET Prize The EMET Prize for Art, Science and Culture is an Israeli prize awarded annually for excellence in academic and professional achievements that have far-reaching influence and make a significant contribution to society. Prizes are awarded in the fo ...

"''for paving new paths in the study of partial-elliptical differential equations and their problematic language and for advancing the knowledge in the field, as well as his essential contribution to the development of the Spectral Theory and the Distribution Theory of Schrödinger Operators.''" He has also received the Weizmann Prize and the Rothschild Prize. In 2012, he became a fellow of the

American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...

Selected works

* *with

Lipman Bers Lipman Bers ( Latvian: ''Lipmans Berss''; May 22, 1914 – October 29, 1993) was a Latvian-American mathematician, born in Riga, who created the theory of pseudoanalytic functions and worked on Riemann surfaces and Kleinian groups. He was also k ...

: * * *; * * *

External links

References