# George B. Purdy

> American mathematician

**Wikidata**: [Q3101404](https://www.wikidata.org/wiki/Q3101404)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/George_B._Purdy)  
**Source**: https://4ort.xyz/entity/george-b-purdy

## Summary
George B. Purdy was an American mathematician, computer scientist, and cryptographer known for his work in combinatorics and number theory. He was a student of Paul Erdős and held affiliations with institutions like the University of Illinois Urbana–Champaign and Texas A&M University.

## Biography
- Born: 1944, San Francisco
- Nationality: United States
- Education: University of Illinois Urbana–Champaign, ETH Zurich
- Known for: Contributions to combinatorics and number theory
- Employer(s): Texas A&M University, University of Cincinnati
- Field(s): Combinatorics, number theory

## Contributions
George B. Purdy made significant contributions to combinatorics and number theory, particularly in the study of combinatorial problems in the plane. He published works under the title *Some combinatorial problems in the plane* in 1978, which was co-authored with Paul Erdős. His research was influential in advancing mathematical theories and algorithms. Purdy also worked in cryptography and computer science, applying his mathematical expertise to secure communication systems.

## FAQs
### Q: What was George B. Purdy's primary field of study?
A: George B. Purdy primarily studied combinatorics and number theory, with notable contributions to combinatorial problems in the plane.

### Q: Who were George B. Purdy's academic advisors?
A: George B. Purdy was advised by Paul Erdős and Paul T. Bateman during his doctoral studies.

### Q: Where did George B. Purdy work professionally?
A: George B. Purdy worked at Texas A&M University and the University of Cincinnati, where he contributed to mathematics and computer science.

### Q: What was George B. Purdy's Erdős number?
A: George B. Purdy had an Erdős number of 1, indicating his collaboration with the renowned mathematician Paul Erdős.

### Q: What institutions did George B. Purdy attend for education?
A: George B. Purdy attended the University of Illinois Urbana–Champaign and ETH Zurich for his studies.

## Why They Matter
George B. Purdy's work in combinatorics and number theory laid the groundwork for advancements in secure communication and computational algorithms. His collaboration with Paul Erdős and his contributions to cryptography and computer science have influenced modern mathematical research. Purdy's research continues to be referenced in academic literature, demonstrating the lasting impact of his work on the field.

## Notable For
- Co-authored *Some combinatorial problems in the plane* (1978) with Paul Erdős.
- Held an Erdős number of 1, reflecting his collaboration with the legendary mathematician.
- Worked in cryptography and computer science, applying mathematical principles to secure systems.
- Advised Justin Wesley Smith during his doctoral studies.
- Affiliated with prestigious institutions including the University of Illinois Urbana–Champaign and Texas A&M University.

## Body
### Early Life and Education
George Barry Purdy was born in 1944 in San Francisco and later studied at the University of Illinois Urbana–Champaign and ETH Zurich. His academic training in mathematics laid the foundation for his career in combinatorics and number theory.

### Academic Career
Purdy's academic career was marked by his collaboration with Paul Erdős, who advised him during his studies. He also worked with Paul T. Bateman as a doctoral advisor. His research focused on combinatorial problems in the plane, contributing to the development of mathematical theories and algorithms.

### Professional Affiliations
Purdy held positions at Texas A&M University and the University of Cincinnati, where he applied his mathematical expertise to computer science and cryptography. His work in these fields was influential in advancing secure communication systems.

### Legacy and Influence
George B. Purdy's contributions to combinatorics and number theory continue to be referenced in academic literature. His Erdős number of 1 and his collaboration with Erdős have cemented his place in mathematical history. Purdy's research and mentorship have left a lasting impact on the field of mathematics.

## References

1. Mathematics Genealogy Project