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Mathematical Themes

Explore the major mathematical themes: geometry, algebra, analysis, arithmetic, logic, and many other fascinating fields.

Discontinuities and series of functions
Math for everyone

Discontinuities and series of functions

The introduction of series of functions, followed by theorems establishing when continuity or differentiability is preserved in the limit, made it possible to construct objects with unusual, counterintuitive properties. Some famous mathematicians had tremendous fun with them!

BERTRAND HAUCHECORNEJan 22, 2020
Discontinuities of all kinds
Math for everyone

Discontinuities of all kinds

They have been called "pathological"; Henri Poincaré spoke of "monsters," accusing them of being "strange functions that strive to resemble as little as possible the respectable functions that serve some purpose." Yet some discontinuous functions have left their mark on history.

ELISABETH BUSSERJan 21, 2020
The emergence of discontinuous functions
Math for everyone

The emergence of discontinuous functions

Until the early 19th century, everything seemed continuous. Trigonometric series brought discontinuous functions onto the scene. They prompted Riemann to generalize the notion of the integral, led Weierstrass to clarify the notion of continuity, and spurred Darboux to study derivatives.

BERTRAND HAUCHECORNEJan 21, 2020
Who (really) holds power in Parliament?
Math for everyone

Who (really) holds power in Parliament?

In May 2019, following the European Parliament elections, some groups gained seats, but not enough to influence the debates. Others lost seats, yet still seem indispensable. A group’s real power cannot be reduced to its number of seats!

ANTOINE ROLLANDJan 21, 2020
University–industry math partnerships | Tangente
Math for everyone

University–industry math partnerships | Tangente

Corporate-sponsored research chairs are one example of the many forms that partnerships between universities and industry can take.

Maxime de RuelleJan 15, 2020
Mathematical innovation days | Tangente
Math for everyone

Mathematical innovation days | Tangente

Businesses and academic research laboratories have every reason to collaborate—but for that to happen, they must first be brought together!

Nicolas NguyenJan 15, 2020
Applied mathematics: past and present | Tangente
Reading note

Applied mathematics: past and present | Tangente

In 1867, Hippolyte Sonnet (1802–1879), professor of analysis and mechanics at the École centrale des arts et manufactures, published his Dictionnaire des mathématiques appliquées.

Norbert VerdierJan 15, 2020
Academia and industry: a dialogue | Tangente
Interview

Academia and industry: a dialogue | Tangente

What matters most is not so much that academia tackles problems faced by industry, but that there is an open, ongoing exchange through which academia can make its advances known.

Mérouane DebbahJan 15, 2020
Total and mathematics: high-performance computing
Knowledge

Total and mathematics: high-performance computing

HPC, or high-performance computing, harnesses multiple processing units, such as CPUs (central processing units) and GPUs (graphics processing units used for computation), to carry out computationally intensive tasks. The Total group has always been a pioneer in the field.

Alexandre LapeneJan 15, 2020
The mathematics of 5G | Tangente
Knowledge

The mathematics of 5G | Tangente

Large companies are beginning to understand that they cannot survive in the long term without funding fundamental research. A career as a mathematician in the private sector is therefore possible, provided you have some understanding of technological challenges.

Norbert VerdierJan 15, 2020
Modélisation des écoulements d'air autour des éoliennes : équations de Navier-Stokes et simulations numériques
Knowledge

Modélisation des écoulements d'air autour des éoliennes : équations de Navier-Stokes et simulations numériques

The energy sector needs advanced mathematical expertise. In wind energy, modeling airflow means grappling with the formidable Navier–Stokes equations. Numerical simulation draws on a variety of discretization techniques.

E. GourichonJan 15, 2020
Information geometry
Knowledge

Information geometry

Information geometry grew out of a desire to give geometric form to spaces of probability distributions. It draws on differential geometry and the study of invariance in statistics. Today, it lies at the heart of many technologies.

FREDERIC BARBARESCOJan 15, 2020
Images: unexpected applications | Tangente
Everyday Math

Images: unexpected applications | Tangente

When we think of the mathematics behind image processing, compression, transmission, denoising and the restoration of digital files naturally come to mind. Its other applications are less familiar—for example, its use in art to help restore frescoes.

Edoardo ProvenziJan 15, 2020
Taking to the skies with mathematics
Math for everyone

Taking to the skies with mathematics

An aircraft is an extraordinarily complex system. Have you ever considered how much mathematics goes into making your flight possible—and enjoyable? Come aboard! Let's take a quick look at the specific demands of aeronautics.

Serge LaporteJan 15, 2020
Randomness in video games
Math for everyone

Randomness in video games

ChickenPods is a free-to-play video game (F2P to those in the know) developed in 2019 at the startup Mathilde. Randomness plays an important role in generating environments and determining how the chickens move. That is where mathematics comes in...

David CoupierJan 15, 2020
Blockchain in all its mathematical forms | Tangente
Math for everyone

Blockchain in all its mathematical forms | Tangente

Blockchain technology is among the technologies to watch in the years ahead, as it could revolutionize several sectors of the economy. It draws on recent mathematical developments through increasingly sophisticated processes.

Jean-Claude PaillèsJan 14, 2020
Matrices and graphs in accounting
Math for everyone

Matrices and graphs in accounting

Accountants are not known for using sophisticated mathematical tools. Yet modern techniques enable them to handle many situations arising in what is known as "complex accounting".

Jean-Guy DegosJan 14, 2020
AMIES: mathematics as a driver of innovation
Everyday Math

AMIES: mathematics as a driver of innovation

Environment, healthcare, transport, energy, finance… Mathematics is now everywhere. The Agency for Mathematics in Interaction with Business and Society works with economic players from every sector. The demand for people trained in mathematics is immense!

M. FrédocJan 14, 2020
Mathematics and employment in France:

Mathematics and employment in France:

The contribution of mathematics to industrial and technological progress is currently booming, thanks in part to the discovery of new mathematical approaches, numerical methods and algorithms. Computing power and the explosion in data volumes are not the whole story!

Stéphane CordierJan 14, 2020
Mathematical expertise in high demand
Everyday Math

Mathematical expertise in high demand

It is not always appreciated, but training in mathematics is increasingly in demand throughout today’s economy. Large corporations, SMEs and start-ups alike are seeking it across an ever-growing range of professions.

Nicolas NguyenJan 14, 2020