The USA team members were chosen from among the participants in the USA Mathematical Olimpiad, whose winners are shown in the photo with MAA officials. From lett to right: Marcia Sward, Executive Director of the MAA, Sasha Schwartz, Stephen E. Haas, Reid W. Barton, Po-Shen Loh, Lawrence O. Detlor, Gabriel D. Carroll, Paul A. Valiant, Melanie Eggers Wood, and Martha Siegel, Secretary of the MAA.

The top 12 teams and their score out of a possible 252 points were:

China (182) Russia (182) Vietnam (177) |
Romania (173) Bulgaria (170) Belarus (167) |
Korea (164) Iran (159) Taiwan (153) |
USA (150) Hungary (147) Ukraine (136) |

The team was also accompanied by Kiran Kedlaya from MIT, who was the Deputy of team, Leader and Professor Walter E. Mientka, from the University of Nebraska-Lincoln, who was the Official USA Leader Observer and is the Secretary of the IMO Advisory Board.

The USA team was chosen solely on the basis of the 28th annual USA Mathematical Olympiad held in April of this year. The Mathematical Olympiad Summer Program was held at the University of Nebraska-Lincoln, June 9 - July 8, 1999.

A representative question which appeared on the 1999 IMO:

Determine all functions f from R to R such thatThe USA Mathematical Olympiad Activities are sponsored by fifteen national associations in the Mathematical sciences with arrangements made by the Mathematical Association of America. Financial and program support is provided by the Army Research Office, the Office of Naval Research, Microsoft Corporation, the Matilda R. Wilson Foundation and the University of Nebraska-Lincoln.

f(x-f(y)) = f(f(y)) + xf(y) + f(x)-1

for all x and y in R.

The 1999 IMO team members:

- Reid Barton, Home Schooled, Arlington, MA

Gold Medalist - Paul Valiant, Milton Academy, Milton, MA

Gold Medalist - Gabriel Carroll, Oakland Technical High School, Oakland, CA

Silver Medalist - Po-Shen Loh, James Madison Memorial High School, Madison, WI

Silver Medalist - Melanie Wood, Park Tudor School, Indianapolis, IN

Silver Medalist - Lawrence Detlor, St. Ann's School, Brooklyn, NY

Bronze Medalist

American Association of Pension Actuaries

American Mathematical Association of Two-Year Colleges

American Mathematical Society

American Statistical Association

Casualty Actuarial Society

Clay Mathematics Institute

Consortium of Mathematics and its Applications

Mathematical Association of America

National Association of Mathematicians

Mu Alpha Theta

National Council of Teachers of Mathematics

Pi Mu Epsilon

School Science and Mathematics Association

Society of Actuaries

University of Nebraska-Lincoln

Copyright ©1999 The Mathematical Association of America

MAA Online is edited by Fernando Q. Gouvêa (fqgouvea@colby.edu). Last modified: Mon Jul 26 09:42:12 -0500 1999