mathematics

Thomas Lengauer

Thomas Lengauer is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Thomas Lengauer rather than just read about it. In short: Thomas Lengauer (born 12 November 1952) is a German computer scientist and computational biologist. Education Lengauer studied Mathematics at the Free University of Berlin, earning his Diploma in 1975 and a Dr. rer. nat.

Key takeaways

Thomas Lengauer belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Thomas Lengauer to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Thomas Lengauer from memory before moving on to harder problems.

Reference excerpt

Thomas Lengauer (born 12 November 1952) is a German computer scientist and computational biologist.

Education Lengauer studied Mathematics at the Free University of Berlin, earning his Diploma in 1975 and a Dr. rer. nat. (equivalent to a PhD) in 1976. Lengauer later gained an MSc (1977) and a PhD (1979) in computer science, both from Stanford University. He received his habilitation degree in computer science at Saarland University in 1984.

Work and research In the seventies and early eighties Lengauer performed research in Theoretical Computer Science at Stanford University, Bell Labs and Saarland University. In 1984 Lengauer became Professor of Computer Science at University of Paderborn. In the eighties and early nineties, Lengauer's research concentrated on discrete optimization methods for the design of integrated circuits and on packing problems in manufacturing. From 1992 to 2001 he was Professor of Computer Science at the University of Bonn and Director of the Institute for Algorithms and Scientific Computing at German National Center for Information Technology. Since 2001, he has been a Director of the Department on Computational Biology and Applied Algorithmics at the Max Planck Institute for Informatics. With his Stanford PhD advisor Robert Tarjan, he is known for the Lengauer–Tarjan algorithm in graph theory. Since the early 1990s his research has focused on computational biology, particularly the alignment of molecular sequences, and also the prediction of protein structure and function, and computational drug screening and design. On the latter topic he cofounded the company BioSolveIT GmbH in Sankt Augustin, Germany, together with Christian Lemmen, Matthias Rarey, and Ralf Zimmer from his team at GMD. Since 2000 he and his team have developed methods for analysis of viral resistance of HIV; in 2005 he entered the field of computational epigenetics. Lengauer retired from his position as Director at Max Planck Institute for Informatics in 2018. Since 2019 he has been part-time affiliated with the Institute of Virology at Cologne University. Lengauer has been the PhD advisor of over 50 students and coauthored over 350 publications.

Activities, awards, and honours Lengauer was a cofounder of the Conference Series European Symposium on Algorithms (ESA, 1993) and European Symposium on Computational Biology (ECCB, 2002). He was a member of the steering committee of the International Conference on Research in Computational Biology (RECOMB) from its inception in 1997 until 2010. He is a founding member of the International Society for Computational Biology (ISCB) and in 2014 became Vice President of this Society. He was elected as a Fellow of the ISCB in 2015 and Fellow of the ACM in 2021. From January 2018 to January 2021 Lengauer was President of the ISCB. In 2003, Lengauer was awarded the Konrad Zuse Medal, the highest award of the Gesellschaft für Informatik (German Informatics Society), as well as the Karl-Heinz-Beckurts Award. In 2010 he was awarded the AIDS Research Award of the Heinz-Ansmann Foundation, together with Rolf Kaiser and Marc Oette. In 2014 he received the Hector Science Award. Lengauer has been a member of the German National Academy of Sciences Leopoldina since 2003. In 2006 he became the Speaker of the Section on Information Sciences of this Academy, in 2013 the Speaker of its Class of Natural Sciences, in 2015 a Member of the Presidium, and in 2025 Vice President of the Academy. Lengauer has also been a member of acatech, the German Academy of Science and Engineering, since 2007 and of Academia Europaea since 2010.

Personal life Lengauer's twin brother Christian Lengauer was a Professor in the Faculty of Informatics and Mathematics at the University of Passau.

References

Illustrations

Worked examples

Example 1 — a first encounter with Thomas Lengauer

Start with the simplest possible case. Write down what Thomas Lengauer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Thomas Lengauer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Thomas Lengauer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Thomas Lengauer

In research: Thomas Lengauer appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Thomas Lengauer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Thomas Lengauer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1952 births, 20th-century German mathematicians, 21st-century German mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Thomas Lengauer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Thomas Lengauer in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Thomas Lengauer means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Thomas Lengauer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Thomas Lengauer in simple terms?

Thomas Lengauer (born 12 November 1952) is a German computer scientist and computational biologist. Education Lengauer studied Mathematics at the Free University of Berlin, earning his Diploma in 1975 and a Dr. rer. nat.

Why does Thomas Lengauer matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Thomas Lengauer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Thomas Lengauer.