Why Are There So Few Women Mathematicians?

How a corrosive culture keeps women out of leadership positions on math

JANE C. HU NOV 4, 2016 – Atlantic

As soon as mathematician Chad Topaz ripped the plastic off his copy of the American Mathematical Society’s magazine Notices, he was disappointed. Staring back at him from the cover were the faces of 13 of his fellow mathematicians—all of them men, and the majority of them white.  “Highlighting all this maleness and whiteness—what is the message that is being sent to the membership?” he wondered. Continue reading

A Beautifully-Designed Edition of Euclid’s Elements from 1847 Gets Digitized: Explore the New Online, Interactive Reproduction

Article by:   from Open Culture

For two millennia, Euclid’s Elements, the foundational ancient work on geometry by the famed Greek mathematician, was required reading for educated people. (The “classically educated” read them in the original Greek.) The influence of the Elements in philosophy and mathematics cannot be overstated; so inspiring are Euclid’s proofs and axioms that Edna St. Vincent Millay wrote a sonnet in his honor. But over time, Euclid’s principles were streamlined into textbooks, and the Elements was read less and less. Continue reading

Déformations de courbes planes, flots géométriques et la conjecture de Poincaré


Le dernier séminaire Aromaths du semestre aura lieu le mercredi 19 décembre à 14h dans la salle 24-34-207 et sera présenté par Zindine Djadli.

Sujets abordés : courbes dans le plan • courbure • analyse réelle


Le but de l’exposé est de présenter un procédé naturel de déformation des courbes planes.  De façon imagée, il s’agit de rendre la courbe moins “courbée” là où elle l’est le plus et de la rendre plus “courbée” là où elle l’est le moins. Grâce à quelques vidéos, on se rendra compte de l’effet obtenu : une courbe convexe se transforme immanquablement en
cercle ! Il est à noter, et ce sera l’un des points abordés dans l’exposé, que ce sont des techniques similaires qui ont permis à Perelman de donner une démonstration de la fameuse conjecture de Poincaré au début des années 2000.

View original post

Unraveling the Mathematics of Smell

Scientists have created a “map” of odor molecules, which could ultimately be used to predict new scent combinations 

The human nose finds it simple to distinguish the aroma of fresh coffee from the stink of rotten eggs, but the underlying biochemistry is complicated. Researchers have now created an olfactory “map”—a geometric model of how molecules combine to produce various scents. This map could inspire a way to predict how people might perceive certain odor combinations and help to drive the development of new fragrances, scientists say. Continue reading