Each year, The Steele Prize is awarded in the following categories:

1. *The Steele Prize for Lifetime Achievement* is awarded for the cumulative influence of the total mathematical work of the recipient, high level of research over a period of time, particular influence on the development of a field, and influence on mathematics through Ph.D. students. The amount of this prize is \$10,000.

**Nominations can be submitted between February 1 and March 31.** Nominations for the Steele Prizes for Lifetime Achievement will remain active and receive consideration for three consecutive years.

**Next Prize:** January 2020

2. *The Steele Prize for Mathematical Exposition* is awarded for a book or substantial survey or expository research paper.The amount of this prize is \$5,000.

**Nominations can be submitted between February 1 and March 31.** Nominations for the Steele Prizes for Mathematical Exposition will remain active and receive consideration for three consecutive years.

**Next Prize:** January 2020

3. *The Steele Prize for Seminal Contribution to Research *is awarded for a paper, whether recent or not, that has proved to be of fundamental or lasting importance in its field, or a model of important research. The amount of this prize is \$5,000.

*Special Note*: The Steele Prize for Seminal Contribution to Research is awarded according to the following six-year rotation of subject areas:

- Open (2025)
**Analysis/Probability (2020)**- Algebra/Number Theory (2021)
- Applied Mathematics (2022)
- Geometry/Topology (2023)
- Discrete Mathematics/Logic (2024)

**Nominations can be submitted between February 1 and March 31.**

**Next Prize:** January 2020

- Lifetime Achievement: January 2019
**Jeff Cheeger**will receive the 2019 Lifetime Achievement Prize for his fundamental contributions to geometric analysis and their far-reaching influence on related areas of mathematics.- Mathematical Exposition: January 2019
**Philippe Flajolet**and**Robert Sedgewick**will receive the 2019 Mathematical Exposition Prize was awarded for their book*Analytic Combinatorics*, an authoritative and highly accessible compendium of its subject, which demonstrates the deep interface between combinatorial mathematics and classical analysis.- Seminal Contribution to Research: January 2019
**Haruzo Hida**will receive the 2019 Seminal Contribution to Research Prize for his highly original paper, "Galois representations into GL_{2}(**Z**[[_{p}*X*]]) attached to ordinary cusp forms," published in 1986 in*Inventiones Mathematicae*.

*The Steele Prize for Lifetime Achievement**The Steele Prize for Mathematical Exposition**The Steele Prize for Seminal Contribution to Research**The Steele Prize, 1970--1992*

These prizes were established in 1970 in honor of George David Birkhoff, William Fogg Osgood, and William Caspar Graustein, and are endowed under the terms of a bequest from Leroy P. Steele. From 1970 to 1976 one or more prizes were awarded each year for outstanding published mathematical research; most favorable consideration was given to papers distinguished for their exposition and covering broad areas of mathematics. In 1977 the Council of the AMS modified the terms under which the prizes are awarded. In 1993, the Council formalized the three categories of the prize by naming each of them: (1) The Leroy P. Steele Prize for Lifetime Achievement; (2) The Leroy P. Steele Prize for Mathematical Exposition; and (3) The Leroy P. Steele Prize for Seminal Contribution to Research.