mathematics

Nikola Obreshkov

Nikola Obreshkov 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 Nikola Obreshkov rather than just read about it. In short: Nikola Dimitrov Obreshkov (Bulgarian: Никола Димитров Обрешков; March 6, 1896 in Varna – August 11, 1963 in Sofia) was a prominent Bulgarian mathematician, working in complex analysis. See also Obreschkoff–Ostrowski theorem References European Mathematics Society Newsletter No. 51 (PDF), page 28.

Key takeaways

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

Reference excerpt

See also Obreschkoff–Ostrowski theorem

References European Mathematics Society Newsletter No. 51 (PDF), page 28. Nikola Obreshkov at the Mathematics Genealogy Project Nikola Obrechkoff

Worked examples

Example 1 — a first encounter with Nikola Obreshkov

Start with the simplest possible case. Write down what Nikola Obreshkov 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 Nikola Obreshkov 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 Nikola Obreshkov 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 Nikola Obreshkov

In research: Nikola Obreshkov 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 Nikola Obreshkov 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: Nikola Obreshkov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1896 births, 1963 deaths, 20th-century Bulgarian mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Nikola Obreshkov 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 Nikola Obreshkov in 20 minutes

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

Frequently asked questions

What is Nikola Obreshkov in simple terms?

Nikola Dimitrov Obreshkov (Bulgarian: Никола Димитров Обрешков; March 6, 1896 in Varna – August 11, 1963 in Sofia) was a prominent Bulgarian mathematician, working in complex analysis. See also Obreschkoff–Ostrowski theorem References European Mathematics Society Newsletter No. 51 (PDF), page 28.

Why does Nikola Obreshkov 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 Nikola Obreshkov?

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 Nikola Obreshkov.