mathematics

Jeong Han Kim

Jeong Han Kim 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 Jeong Han Kim rather than just read about it. In short: Jeong Han Kim (Korean: 김정한; born July 20, 1962) is a South Korean mathematician. He studied physics and mathematical physics at Yonsei University, and earned his Ph.D. in mathematics at Rutgers University.

Key takeaways

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

Reference excerpt

Jeong Han Kim (Korean: 김정한; born July 20, 1962) is a South Korean mathematician. He studied physics and mathematical physics at Yonsei University, and earned his Ph.D. in mathematics at Rutgers University. He was a researcher at AT&T Bell Labs and at Microsoft Research, and was Underwood Chair Professor of Mathematics at Yonsei University. He is currently a Professor of the School of Computational Sciences at the Korea Institute for Advanced Study. His main research fields are combinatorics and computational mathematics. His best known contribution to the field is his proof that the Ramsey number R(3,t) has asymptotic order of magnitude t2/log t. He received the Fulkerson Prize in 1997 for his contributions to Ramsey theory. In 2008, he became president of the National Institute for Mathematical Sciences of South Korea and was also awarded the Kyung-Ahm Prize. He was discharged of the position in 2011 after being accused of having allegedly misappropriated research funds. However, he was found not guilty by prosecution's investigation. In 2020, he received the Samil Prize.

References

External links Faculty page of Jeong Han Kim Archived 2018-07-10 at the Wayback Machine at Korea Institute for Advanced Study Fulkerson Prize Winners at Mathematical Programming Society Jeong Han Kim at the Mathematics Genealogy Project

Worked examples

Example 1 — a first encounter with Jeong Han Kim

Start with the simplest possible case. Write down what Jeong Han Kim 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 Jeong Han Kim 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 Jeong Han Kim 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 Jeong Han Kim

In research: Jeong Han Kim 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 Jeong Han Kim 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: Jeong Han Kim is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1962 births, 20th-century South Korean mathematicians, 21st-century South Korean mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Jeong Han Kim 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 Jeong Han Kim in 20 minutes

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

Frequently asked questions

What is Jeong Han Kim in simple terms?

Why does Jeong Han Kim 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 Jeong Han Kim?

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 Jeong Han Kim.