astronomy

S. A. Choudum

S. A. Choudum 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 S. A. Choudum rather than just read about it. In short: Sheshayya A. Choudum (born 1947) was a professor and a former chair of the department of mathematics at IIT Madras.

Key takeaways

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

Reference excerpt

Sheshayya A. Choudum (born 1947) was a professor and a former chair of the department of mathematics at IIT Madras. He has often worked in chromatic numbers, degree sequences, graph enumeration, and bivariegated graphs. Choudum hails from Manvi, Raichur district, Karnataka. He completed a M.Sc., in Mathematics from Karnataka University, Dharwar and a Ph.D. in 1975 from IIT Madras. From there, he came to the Department of Mathematics University of Mumbai. Prior to joining the Computer Science Department at IIT Madras, he was with the Department of Mathematics of Madurai Kamaraj University. While at Madurai, he visited the University of Reading to work with Crispin Nash-Williams. Choudum has guided 10 Ph.D. students in graph theory.

Books A First Course in Graph Theory by S.A. Choudum Macmillan, 1999 ISBN 0-333-92040-6 Graph Theory, by S.A. Choudum, NPTEL (IITM), India, 2011.

References

External links S. A. Choudum at the Mathematics Genealogy Project Dr. Choudum's webpage at IIT Madras

Worked examples

Example 1 — a first encounter with S. A. Choudum

Start with the simplest possible case. Write down what S. A. Choudum 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 S. A. Choudum 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 S. A. Choudum 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 S. A. Choudum

In research: S. A. Choudum 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 S. A. Choudum 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: S. A. Choudum is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1947 births, Academic staff of IIT Madras, Academic staff of Madurai Kamaraj University, so understanding it makes those chapters shorter.
In everyday life: Look for S. A. Choudum 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 S. A. Choudum in 20 minutes

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

Frequently asked questions

What is S. A. Choudum in simple terms?

Sheshayya A. Choudum (born 1947) was a professor and a former chair of the department of mathematics at IIT Madras.

Why does S. A. Choudum 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 S. A. Choudum?

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 S. A. Choudum.