# Pascal Koiran

> Ph.D. École Normale Supérieure de Lyon 1993

**Wikidata**: [Q29034815](https://www.wikidata.org/wiki/Q29034815)  
**Source**: https://4ort.xyz/entity/pascal-koiran

## Summary
Pascal Koiran is a French computer scientist and professor at École Normale Supérieure de Lyon (ENS Lyon), recognized for his contributions to theoretical computer science, particularly in computational complexity and algebra. A recipient of the CNRS Bronze Medal (1999), he has advanced research in algorithms and mathematical foundations of computing.

## Biography
- **Born**: June 11, 1969, Paris, France  
- **Nationality**: France  
- **Education**: Ph.D. in computer science, École Normale Supérieure de Lyon (1993)  
- **Known for**: Research in computational complexity, algebra, and theoretical computer science  
- **Employer(s)**: École Normale Supérieure de Lyon  
- **Field(s)**: Theoretical computer science, mathematics  

## Contributions
Pascal Koiran has conducted foundational research in computational complexity theory, algebra, and the intersection of mathematics and computer science. His work includes studies on polynomial identity testing, algebraic complexity, and the theoretical limits of algorithms. As a professor at ENS Lyon, he has supervised numerous doctoral students, including Sébastien Tavenas, Emmanuel Jeandel, and Olivier Bournez, contributing to the development of the next generation of researchers. Koiran’s research has been published in peer-reviewed journals and conference proceedings, though specific high-impact papers are not detailed in the source material. His 1999 CNRS Bronze Medal recognizes early-career contributions to science, highlighting his impact on French and international computer science research.

## FAQs
### Q: Where did Pascal Koiran earn his Ph.D.?  
A: He received his Ph.D. from École Normale Supérieure de Lyon in 1993 under the supervision of Michel Cosnard.  

### Q: What is Pascal Koiran’s most notable award?  
A: He was awarded the CNRS Bronze Medal in 1999 for his contributions to computer science.  

### Q: What fields is Pascal Koiran known for?  
A: His work focuses on theoretical computer science, particularly computational complexity and algebra.  

## Why They Matter  
Pascal Koiran’s research has deepened understanding of computational complexity and algebraic structures, influencing algorithm design and mathematical foundations of computing. As a professor at ENS Lyon, he has shaped academic discourse and mentored researchers who continue to advance the field. His recognition by CNRS underscores his role in advancing French scientific excellence, contributing to international collaborations in theoretical computer science. Without his work, key insights into polynomial identity testing and algebraic algorithms might lack critical theoretical underpinnings.

## Notable For  
- Recipient of the CNRS Bronze Medal (1999).  
- Professor at École Normale Supérieure de Lyon.  
- Advisor to multiple doctoral students in computer science.  
- Member of the Institut Universitaire de France.  

## Body  
### Early Life and Education  
Pascal Koiran was born in Paris, France, on June 11, 1969. He pursued higher education at École Normale Supérieure de Lyon (ENS Lyon), where he completed his Ph.D. in computer science in 1993 under the supervision of Michel Cosnard, a prominent French researcher in computer science.  

### Career  
Koiran has spent his career at ENS Lyon as a researcher and professor, focusing on theoretical computer science. His academic roles include:  
- **Professor**, École Normale Supérieure de Lyon.  
- **Member**, Institut Universitaire de France.  

### Research Focus  
Koiran’s research spans:  
- **Computational Complexity**: Studying the resources required to solve computational problems.  
- **Algebra**: Exploring algebraic structures and their applications to computer science.  
- **Algorithmic Foundations**: Investigating the theoretical limits of algorithms.  

### Awards and Recognition  
- **CNRS Bronze Medal** (1999): Awarded for early-career contributions to science.  

### Mentorship  
Koiran has supervised numerous doctoral students, including:  
- Emmanuel Jeandel  
- Vincent Nesme  
- Sylvain Perifel  
- Olivier Bournez  
- Hervé Fournier  
- Bruno Grenet  
- Sébastien Tavenas  

### Professional Affiliations  
- **Member**, Institut Universitaire de France.  
- **Employer**, École Normale Supérieure de Lyon (confirmed via ORCID and Wikidata).  

### Publications and Impact  
While specific publications are not enumerated in the source material, Koiran’s work is recognized through academic platforms such as Google Scholar, DBLP, and zbMATH, reflecting his active contributions to computer science literature. His research identifiers include:  
- **Google Scholar Author ID**: EQwChR4AAAAJ  
- **zbMATH Author ID**: koiran.pascal  
- **Mathematics Genealogy Project ID**: 108574  

### Legacy  
Koiran’s dual focus on theoretical computer science and mathematics has bridged disciplines, fostering advancements in algorithmic efficiency and algebraic methods. His mentorship and institutional roles have strengthened France’s reputation in computational research, ensuring sustained academic and practical impact.

## References

1. Mathematics Genealogy Project
2. [ORCID Public Data File 2023](https://pub.orcid.org/v3.0/0000-0003-3405-7155/employment/14040694)
3. [Source](http://www.ens-lyon.fr/recherche/panorama-de-la-recherche/prix-et-distinctions/pascal-koiran-professeur-en-informatique)
4. Virtual International Authority File
5. IdRef