astronomy

Hans J. Reiter

Hans J. Reiter is a astronomy 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 Hans J. Reiter rather than just read about it. In short: Hans Jakob Reiter (26 November 1921 – 13 August 1992) was an Austrian mathematician working in analysis. Because of the Anschluss, Hans Reiter had to leave his hometown before his Matura.

Key takeaways

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

Reference excerpt

Hans Jakob Reiter (26 November 1921 – 13 August 1992) was an Austrian mathematician working in analysis. Because of the Anschluss, Hans Reiter had to leave his hometown before his Matura. Via Italy he was able to emigrate to Brazil, where he studied under André Weil. In 1953 he received his PhD from Rice University under Szolem Mandelbrojt with thesis Investigations in harmonic analysis. In 1952 he became an assistant at the University of Vienna and in 1971 obtained a professorial chair there, after years in various foreign academic positions, including an interval from 1964 to 1971 as a professor at the University of Utrecht. Reiter's doctoral students include Hans Georg Feichtinger. Reiter wrote the widely used textbook Classical Harmonic Analysis and Locally Compact Groups.

References

External links Obituary (in German) by Edmund Hlawka Laudatio of his scientific works

Worked examples

Example 1 — a first encounter with Hans J. Reiter

Start with the simplest possible case. Write down what Hans J. Reiter claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Hans J. Reiter 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 Hans J. Reiter 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 Hans J. Reiter

In research: Hans J. Reiter appears in astronomy 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 Hans J. Reiter 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: Hans J. Reiter is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1921 births, 1992 deaths, 20th-century Austrian mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Hans J. Reiter 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 Hans J. Reiter in 20 minutes

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

Frequently asked questions

What is Hans J. Reiter in simple terms?

Hans Jakob Reiter (26 November 1921 – 13 August 1992) was an Austrian mathematician working in analysis. Because of the Anschluss, Hans Reiter had to leave his hometown before his Matura.

Why does Hans J. Reiter matter?

Because it connects several astronomy 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 Hans J. Reiter?

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 Hans J. Reiter.