mathematics

Marie Rognes

Marie Rognes 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 Marie Rognes rather than just read about it. In short: Marie Elisabeth Rognes (born 7 October 1982) is a Norwegian applied mathematician specializing in scientific computing and numerical methods for partial differential equations. She works at the Simula Research Laboratory, as one of their chief research scientists.

Key takeaways

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

Reference excerpt

Marie Elisabeth Rognes (born 7 October 1982) is a Norwegian applied mathematician specializing in scientific computing and numerical methods for partial differential equations. She works at the Simula Research Laboratory, as one of their chief research scientists.

Education and career Rognes was a student in applied mathematics at the University of Oslo, earning a master's degree in 2005 and completing a Ph.D. in 2009. Her dissertation, Mixed finite element methods with applications to viscoelasticity and gels, was jointly supervised by Ragnar Winther and Hans Petter Langtangen. After postdoctoral research at the University of Minnesota and the Simula Research Laboratory, she joined the University of Oslo as a lecturer in 2012, and in the same year became a senior researcher for Simula Research. She remained affiliated on a part-time basis with the University of Oslo until 2016, when she became a chief research scientist for Simula Research.

Recognition Rognes became one of 20 founding members of the Young Academy of Norway in 2015. In the same year she was part of a team that won the J. H. Wilkinson Prize for Numerical Software, given every four years at the International Congress on Industrial and Applied Mathematics. The award cited their work on dolfin-adjoint, a software package for adjoint and tangent linear equations. In 2018 she was the winner of the Royal Norwegian Society of Sciences and Letters Prize for Young Researchers in the Natural Sciences.

References

External links Home page Marie Rognes publications indexed by Google Scholar

Worked examples

Example 1 — a first encounter with Marie Rognes

Start with the simplest possible case. Write down what Marie Rognes 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 Marie Rognes 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 Marie Rognes 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 Marie Rognes

In research: Marie Rognes 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 Marie Rognes 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: Marie Rognes is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1982 births, 21st-century mathematicians, Academic staff of the University of Oslo, so understanding it makes those chapters shorter.
In everyday life: Look for Marie Rognes 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 Marie Rognes in 20 minutes

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

Frequently asked questions

What is Marie Rognes in simple terms?

Why does Marie Rognes 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 Marie Rognes?

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 Marie Rognes.