mathematics

Ljubisa D.R. Kocinac

Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac rather than just read about it. In short: Ljubisa Dragi Rosanda Kocinac (born in Serbia in January 1947) is a mathematician and currently a Professor Emeritus at the University of Niš, Serbia. Biography He completed his PhD, focused on cardinal functions, at the University of Belgrade in 1983, under the supervision of Đuro Kurepa.

Key takeaways

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

Reference excerpt

Ljubisa Dragi Rosanda Kocinac (born in Serbia in January 1947) is a mathematician and currently a Professor Emeritus at the University of Niš, Serbia.

Biography He completed his PhD, focused on cardinal functions, at the University of Belgrade in 1983, under the supervision of Đuro Kurepa. Kocinac has published over 160 papers and four books in topology, real analysis and fields of sets. He has actively promoted research on selection principles, as a fruitful collaborator and as an organizer of the first conferences in a series of international workshops titled Coverings, Selections and Games in Topology. The fourth of this series, held in Caserta, Italy, in June 2012 was dedicated to him on the occasion of his sixty-fifth birthday. His research interests include aspects of topology, especially selection principles, topological games and coverings of topological spaces, and mathematical analysis. In particular, he introduced star selection principles. He is also known for his wit. When asked "Would you like some wine?", Kočinac replied "Only if you insist. (Pause) Please insist.".

References

Worked examples

Example 1 — a first encounter with Ljubisa D.R. Kocinac

Start with the simplest possible case. Write down what Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac

In research: Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac 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: Ljubisa D.R. Kocinac is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1947 births, Academic staff of the University of Niš, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac in 20 minutes

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

Frequently asked questions

What is Ljubisa D.R. Kocinac in simple terms?

Ljubisa Dragi Rosanda Kocinac (born in Serbia in January 1947) is a mathematician and currently a Professor Emeritus at the University of Niš, Serbia. Biography He completed his PhD, focused on cardinal functions, at the University of Belgrade in 1983, under the supervision of Đuro Kurepa.

Why does Ljubisa D.R. Kocinac 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 Ljubisa D.R. Kocinac?

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 Ljubisa D.R. Kocinac.