mathematics

Gert Sabidussi

Gert Sabidussi 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 Gert Sabidussi rather than just read about it. In short: Gert Sabidussi (28 October 1929 – 1 April 2022) was an Austrian mathematician specializing in combinatorics and graph theory. Biography Sabidussi was born in Graz, Austria, on 28 October 1929.

Key takeaways

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

Reference excerpt

Gert Sabidussi (28 October 1929 – 1 April 2022) was an Austrian mathematician specializing in combinatorics and graph theory.

Biography Sabidussi was born in Graz, Austria, on 28 October 1929. His family later moved to Innsbruck, where his father was a Protestant deacon. He graduated from the University of Vienna, where he attended lectures by Felix Ehrenhaft, Nikolaus Hofreiter, Johann Radon and Hans Thirring. In 1953, he defended his doctorate on 0–1 matrices under the supervision of Edmund Hlawka and received a two-year fellowship at Princeton University. He was then an instructor at the University of Minnesota in Minneapolis, but because of the heavy teaching load moved a year later, in 1956, to Tulane University in New Orleans. He moved to McMaster University in Hamilton, Ontario, in 1960 and afterwards to the University of Montreal in 1969. He was instrumental in bringing to Canada a number of combinatorialists and graph theorists, including Anton Kotzig and Jaroslav Nešetřil, who wrote a thesis under Sabidussi. Over the years, he had 13 graduate students. His 60th, 70th and 80th birthdays were celebrated with large graph theory birthday conferences. Sabidussi died on 1 April 2022, at the age of 92.

Mathematical work Sabidussi wrote foundational work on Cayley graphs, graph products and Frucht's theorem.

References

Sources Sabidussi's Biography (in German)

External links Gert Sabidussi Web Page at Université de Montréal. Gert Sabidussi at the Mathematics Genealogy Project Algebraic Graph Theory 2009, a Conference in celebration of Gert Sabidussi's 80th birthday.

Worked examples

Example 1 — a first encounter with Gert Sabidussi

Start with the simplest possible case. Write down what Gert Sabidussi 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 Gert Sabidussi 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 Gert Sabidussi 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 Gert Sabidussi

In research: Gert Sabidussi 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 Gert Sabidussi 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: Gert Sabidussi is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1929 births, 2022 deaths, 20th-century Austrian mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Gert Sabidussi 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 Gert Sabidussi in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Gert Sabidussi 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 Gert Sabidussi out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Gert Sabidussi in simple terms?

Gert Sabidussi (28 October 1929 – 1 April 2022) was an Austrian mathematician specializing in combinatorics and graph theory. Biography Sabidussi was born in Graz, Austria, on 28 October 1929.

Why does Gert Sabidussi 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 Gert Sabidussi?

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 Gert Sabidussi.