science

Journal of Combinatorial Theory

Journal of Combinatorial Theory is a science 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 Journal of Combinatorial Theory rather than just read about it. In short: The Journal of Combinatorial Theory, Series A and Series B, are mathematical journals specializing in combinatorics and related areas. They are published by Elsevier.

Key takeaways

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

Reference excerpt

The Journal of Combinatorial Theory, Series A and Series B, are mathematical journals specializing in combinatorics and related areas. They are published by Elsevier. Series A is concerned primarily with structures, designs, and applications of combinatorics. Series B is concerned primarily with graph and matroid theory. The two series are two of the leading journals in the field and are widely known as JCTA and JCTB. The journal was founded in 1966 by Frank Harary and Gian-Carlo Rota. Originally there was only one journal, which was split into two parts in 1971 as the field grew rapidly. In 2020, most of the editorial board of JCTA resigned to form a new, open access journal Combinatorial Theory. The new journal aims to be a continuation of JCTA independently from Elsevier. It published its first issue in December 2021. Michel Lavrauw is the editor-in-chief of JCTA. D. Král' and D. Mubayi are the editors-in-chief of JCTB.

Influential articles Influential articles that appeared in the journal include Katona's elegant proof of the Erdős–Ko–Rado theorem and a series of papers spanning over 500 pages, appearing from 1983 to 2004, by Neil Robertson and Paul D. Seymour on the topic of graph minors, which together constitute the proof of the graph minors theorem. Two articles proving Kneser's conjecture, the first by László Lovász and the other by Imre Bárány, appeared back-to-back in the same issue of the journal.

References

Worked examples

Example 1 — a first encounter with Journal of Combinatorial Theory

Start with the simplest possible case. Write down what Journal of Combinatorial Theory claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Journal of Combinatorial Theory 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 Journal of Combinatorial Theory 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 Journal of Combinatorial Theory

In research: Journal of Combinatorial Theory appears in science 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 Journal of Combinatorial Theory 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: Journal of Combinatorial Theory is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic journals established in 1966, Combinatorics journals, Elsevier academic journals, so understanding it makes those chapters shorter.
In everyday life: Look for Journal of Combinatorial Theory 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 Journal of Combinatorial Theory in 20 minutes

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

Frequently asked questions

What is Journal of Combinatorial Theory in simple terms?

The Journal of Combinatorial Theory, Series A and Series B, are mathematical journals specializing in combinatorics and related areas. They are published by Elsevier.

Why does Journal of Combinatorial Theory matter?

Because it connects several science 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 Journal of Combinatorial Theory?

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 Journal of Combinatorial Theory.