# Lars Birkedal

> Ph.D. Carnegie Mellon University 1999

**Wikidata**: [Q64055675](https://www.wikidata.org/wiki/Q64055675)  
**Source**: https://4ort.xyz/entity/lars-birkedal

## Summary
Lars Birkedal is a Danish computer scientist specializing in programming languages and program verification. He is best known for his contributions to the semantic and logical foundations of compilers and program verification systems, for which he was named an ACM Fellow in 2017.

## Biography
- **Born**: [Not specified in source material]
- **Nationality**: Denmark
- **Education**:
  - Ph.D., Carnegie Mellon University, 1999
  - University of Copenhagen (attended until 1994)
- **Known for**: Semantic and logical foundations of compilers and program verification systems
- **Employer(s)**:
  - Aarhus University (2013–present)
  - IT University of Copenhagen (2000–2012)
- **Field(s)**: Programming languages, computer science

## Contributions
Lars Birkedal has made significant contributions to the theory of programming languages, particularly in the areas of program verification and compiler correctness. His work focuses on developing semantic models and logical frameworks that ensure the reliability and correctness of software systems. He has supervised numerous Ph.D. students, including Rasmus Ejlers Møgelberg and Søren Debois, who have gone on to make their own contributions to computer science. Birkedal’s research has been influential in advancing the formal methods used in software engineering, providing rigorous foundations for tools that verify the correctness of programs. His publications and collaborations have helped shape modern approaches to programming language theory and verification.

## FAQs
### Q: What is Lars Birkedal known for?
A: Lars Birkedal is known for his work on the semantic and logical foundations of compilers and program verification systems, which has advanced the field of programming language theory.

### Q: Where does Lars Birkedal work?
A: He is currently a professor at Aarhus University in Denmark, having previously worked at the IT University of Copenhagen.

### Q: What awards has Lars Birkedal received?
A: He was named an ACM Fellow in 2017 for his contributions to the semantic and logical foundations of compilers and program verification systems.

### Q: Who were Lars Birkedal’s doctoral advisors?
A: His doctoral advisor was Dana Scott, a renowned American mathematician and computer scientist.

### Q: What is Lars Birkedal’s educational background?
A: He earned his Ph.D. from Carnegie Mellon University in 1999 and attended the University of Copenhagen prior to that.

## Why They Matter
Lars Birkedal’s work has had a lasting impact on the field of programming languages by providing rigorous theoretical foundations for program verification and compiler correctness. His research has influenced the development of formal methods and tools that ensure software reliability, which is critical in industries where correctness is paramount, such as aerospace, healthcare, and finance. By advancing the understanding of semantic models and logical frameworks, Birkedal has helped bridge the gap between theoretical computer science and practical software engineering. His mentorship of Ph.D. students has also extended his influence, as many of his advisees have become leading researchers in their own right.

## Notable For
- ACM Fellow (2017) for contributions to the semantic and logical foundations of compilers and program verification systems.
- Doctoral advisor to multiple prominent computer scientists, including Rasmus Ejlers Møgelberg and Søren Debois.
- Member of the Royal Danish Academy of Sciences and Letters.
- Former faculty at the IT University of Copenhagen and current faculty at Aarhus University.
- Author of influential research in programming language theory and verification.

## Body
### Early Life and Education
Lars Birkedal attended the University of Copenhagen, completing his studies there in 1994. He later earned his Ph.D. from Carnegie Mellon University in 1999, where he was advised by Dana Scott, a Turing Award-winning computer scientist.

### Career and Research
Birkedal began his academic career at the IT University of Copenhagen in 2000, where he worked until 2012. He then moved to Aarhus University, where he continues to conduct research in programming languages and verification. His work focuses on developing mathematical models and logical systems that can be used to prove the correctness of programs and compilers. This research is critical for ensuring that software behaves as intended, particularly in safety-critical applications.

### Awards and Recognition
In 2017, Birkedal was named an ACM Fellow for his contributions to the semantic and logical foundations of compilers and program verification systems. This prestigious award recognizes his impact on the field of computer science. He is also a member of the Royal Danish Academy of Sciences and Letters, further highlighting his contributions to research and academia.

### Mentorship and Legacy
Birkedal has supervised numerous Ph.D. students, many of whom have gone on to make significant contributions to computer science. His advisees include Rasmus Ejlers Møgelberg, Søren Debois, and several others who have become researchers and educators in their own right. Through his teaching and mentorship, Birkedal has helped shape the next generation of computer scientists.

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## References

1. Mathematics Genealogy Project
2. [Source](https://www.acm.org/media-center/2017/december/fellows-2017)
3. IdRef
4. National Library of Israel Names and Subjects Authority File