Pages

Monday, April 12, 2010

Math Monday: Emmy Noether - she revolutionized mathematics


Here's an article from Wikipedia on woman mathematician Emmy Noether:

Amalie Emmy Noether, (23 March 1882 – 14 April 1935) was a German-born mathematician known for her groundbreaking contributions to abstract algebra and theoretical physics. Described by David Hilbert, Albert Einstein and others as the most important woman in the history of mathematics, she revolutionized the theories of rings, fields, and algebras. In physics, Noether's theorem explains the fundamental connection between symmetry and conservation laws.

She was born to a Jewish family in the Bavarian town of Erlangen; her father was the mathematician Max Noether. Emmy originally planned to teach French and English after passing the required examinations, but instead studied mathematics at the University of Erlangen, where her father lectured. After completing her dissertation in 1907 under the supervision of Paul Gordan, she worked at the Mathematical Institute of Erlangen without pay for seven years.

In 1915 she was invited by David Hilbert and Felix Klein to join the mathematics department at the University of Göttingen, a world-renowned center of mathematical research. The philosophical faculty objected, however, and she spent four years lecturing under Hilbert's name. Her habilitation was approved in 1919, allowing her to obtain the rank of privatdozent.

Noether remained a leading member of the Göttingen mathematics department until 1933; her students were sometimes called the "Noether boys". In 1924, Dutch mathematician B. L. van der Waerden joined her circle and soon became the leading expositor of Noether's ideas: her work was the foundation for the second volume of his influential 1931 textbook, Moderne Algebra.

By the time of her plenary address at the 1932 International Congress of Mathematicians in Zürich, her algebraic acumen was recognized around the world. The following year, Germany's Nazi government dismissed Jews from university positions, and Noether moved to the United States to take up a position at Bryn Mawr College in Pennsylvania. In 1935 she underwent surgery for an ovarian cyst and, despite signs of a recovery, died four days later at the age of 53.

Noether's mathematical work has been divided into three "epochs".[4] In the first (1908–1919), she made significant contributions to the theories of algebraic invariants and number fields. Her work on differential invariants in the calculus of variations, Noether's theorem, has been called "one of the most important mathematical theorems ever proved in guiding the development of modern physics". In the second epoch, (1920–1926), she began work that "changed the face of [abstract] algebra".

In her classic paper Idealtheorie in Ringbereichen (Theory of Ideals in Ring Domains, 1921) Noether developed the theory of ideals in commutative rings into a powerful tool with wide-ranging applications. She made elegant use of the ascending chain condition, and objects satisfying it are named Noetherian in her honor. In the third epoch, (1927–1935), she published major works on noncommutative algebras and hypercomplex numbers and united the representation theory of groups with the theory of modules and ideals. In addition to her own publications, Noether was generous with her ideas and is credited with several lines of research published by other mathematicians, even in fields far removed from her main work, such as algebraic topology.

At an exhibition at the 1964 World's Fair devoted to Modern Mathematicians, Noether was the only woman represented among the notable mathematicians of the modern world.

Noether has been honored in several memorials:

The Association for Women in Mathematics holds a Noether Lecture to honor women in mathematics every year; in its 2005 pamphlet for the event, the Association characterizes Noether as "one of the great mathematicians of her time, someone who worked and struggled for what she loved and believed in. Her life and work remain a tremendous inspiration".

Consistent with her dedication to her students, the University of Siegen houses its mathematics and physics departments in buildings on the Emmy Noether Campus.

The German Research Foundation (Deutsche Forschungsgemeinschaft) operates the Emmy Noether Programm, a scholarship providing funding to promising young post-doctorate scholars in their further research and teaching activities.

A street in her hometown, Erlangen, has been named after Emmy Noether and her father, Max Noether.

The successor to the secondary school she attended in Erlangen has been renamed as the Emmy Noether School.

Farther from home,
The crater Nöther on the far side of the Moon is named after her.
The 7001 Noether asteroid also is named for Emmy Noether

No comments:

Post a Comment