mathematics

Lars-Erik Persson

Lars-Erik Persson 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 Lars-Erik Persson rather than just read about it. In short: Lars-Erik Persson (born 24 September 1944) is a Swedish/Norwegian professor in mathematics. His merits, background and personality have been described in many ways both in newspapers and scientific Journals.

Key takeaways

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

Reference excerpt

Lars-Erik Persson (born 24 September 1944) is a Swedish/Norwegian professor in mathematics. His merits, background and personality have been described in many ways both in newspapers and scientific Journals. Persson was born in the small village Svanabyn in north Sweden. He had a special “class travel” from a poor farmer family to well established mathematician. He took his PhD in mathematics at Umeå University 1974. After that he worked as Associate Professor at Umeå University and Luleå University of Technology. From 1992 Persson has been employed as a Professor in one or other form at one or more of the following universities: UiT The Arctic University of Norway, Luleå University of Technology, Uppsala University, Karlstad University and Lund University. In 2005 Persson got a title of honorary Professor at Eurasian National University in Kazakhstan. Persson has been collaborating with many researchers around the world. In particular, he has written joint papers/books with around 170 mathematicians from 42 different countries, having around 350 scientific publications, with 10 scientific books among them. He is also a coauthor of 5 teaching books and Editor of 7 books. Persson'smost cited books are "Weighted Inequalities of Hardy Type" and "Convex Functions and Their Applications", with totally more than 3000 citations in Google Scholar. Persson's research areas are the following nine ones: Fourier Analysis, Interpolation Theory, PDE:s and Homogenization Theory, Convexity Theory, Hardy-Type Inequalities, Continuous and Matricial Inequalities, Functional Analysis, Applied Mathematics and Mathematical Didactics. Persson has made major contributions in all mentioned areas. In particular, Persson has been a supervisor for students with PhD exams in each of these nine areas, totally more than 71 until year 2025. The other main academic merits of Persson are for example the following:

Persson was vice President (1994-1996) and then President (1996-1998) of the Swedish Mathematical Society. In 2010 and 2012-2014 Persson was the chairman of the board NT1 (Natural and Engineering Sciences) at The Swedish Research Council, a government agency distributing funding for all basic research of the highest quality in Sweden. In 2002 Persson got the Louise Petrén’s award for his support to female mathematicians in Sweden, being the first who got such an award. Indeed, he has been a supervisor for 31 females with PhD exams (six of them are already Professors in four different countries). Persson has at different academic celibrations at the university got awards as the best of the year concerning a) supervision, b) research, c) teacher and d) collaboration with institutions and schools outside the university. LEP has received a great number of awards of different types. The most prestigious award Persson received is Ångpanneföreningens stora pris, 2008, for his outstanding work to transfer important knowledge to the world outside the university. This national award is given each year to only one researcher from Sweden in competition between all subjects and universities. This is the only time it has been given to a mathematician. It has been arranged conferences/workshops for the 65, 70, 75 and 80 years anneversaries of Persson. In all cases some corresponding proceedings/tematic numbers in Journals to his honor has been published.

References

Illustrations

Lars-Erik Persson: Lars-Erik Persson — Lars-Erik Persson

Worked examples

Example 1 — a first encounter with Lars-Erik Persson

Start with the simplest possible case. Write down what Lars-Erik Persson 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 Lars-Erik Persson 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 Lars-Erik Persson 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 Lars-Erik Persson

In research: Lars-Erik Persson 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 Lars-Erik Persson 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: Lars-Erik Persson is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1944 births, Living people, Swedish mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Lars-Erik Persson 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 Lars-Erik Persson in 20 minutes

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

Frequently asked questions

What is Lars-Erik Persson in simple terms?

Why does Lars-Erik Persson 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 Lars-Erik Persson?

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 Lars-Erik Persson.