mathematics

Marie Charpentier

Marie Charpentier 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 Charpentier rather than just read about it. In short: Jeanne Radegonde Marie Charpentier (30 October 1903 – 9 October 1994) was a French mathematician. She was the first woman to obtain a doctorate in pure mathematics in France, and the second woman, after Marie-Louise Dubreil-Jacotin, to obtain a faculty position in mathematics at a university in France.

Key takeaways

Marie Charpentier 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 Charpentier to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Marie Charpentier from memory before moving on to harder problems.

Reference excerpt

Jeanne Radegonde Marie Charpentier (30 October 1903 – 9 October 1994) was a French mathematician. She was the first woman to obtain a doctorate in pure mathematics in France, and the second woman, after Marie-Louise Dubreil-Jacotin, to obtain a faculty position in mathematics at a university in France.

Early life and education Jeanne Radegonde Marie Charpentier was born in Poitiers, the daughter of Michel Marie Eugène Charpentier and Marie Thérèse Geneviève Rondelet, on either 29 or 30 October 1903. Charpentier joined the Société mathématique de France in 1930, possibly their second female member after Édmée Chandon. She was a student of Georges Bouligand at the University of Poitiers, where she completed her thesis in 1931 with Paul Montel as chair. Her dissertation was Sur les points de Peano d'une equation différentielle du premier ordre [On the Peano points of a first-order differential equation].

Career Charpentier did postdoctoral studies with George Birkhoff at Harvard University, and was an invited speaker on geometry at the 1932 International Congress of Mathematicians in Zurich. However, she could not obtain a faculty position in France at that time, and instead had to support herself as a teacher at the high school level for some years. She was appointed to her faculty position in 1942, at the University of Rennes. She became full professor there. Rennes university's maths department was different in 1960 because it had a relatively high percentage of women. There were fifteen professors and three of them were women. Charpentier was one of them and the other two were Huguette Delavault and Paulette Libermann. Huguette Delavault went on to champion the role of women and Libermann was to be known for differential geometry. She retired in 1973.

References

Illustrations

Worked examples

Example 1 — a first encounter with Marie Charpentier

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

In research: Marie Charpentier 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 Charpentier 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 Charpentier is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1903 births, 1994 deaths, 20th-century French educators, so understanding it makes those chapters shorter.
In everyday life: Look for Marie Charpentier 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 Charpentier in 20 minutes

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

Frequently asked questions

What is Marie Charpentier in simple terms?

Why does Marie Charpentier 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 Charpentier?

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 Charpentier.