background preloader

L'Anneau des Mathématiques Francophones

Related:  Mathématiciens (H)agrégat 4focaliser un peu plus sur ces thèmes

Mathematics Genealogy Project - Wikipedia The Mathematics Genealogy Project is a web-based database for the academic genealogy of mathematicians.[1][2][3] By the end of April 2016, it contained information on over 197,000 mathematical scientists who contributed to research-level mathematics. For a typical mathematician, the project entry includes graduation year, thesis title, alma mater, doctoral advisor, and doctoral students.[1][4] Origin of the database[edit] The project grew out of founder Harry Coonce's desire to know the name of his advisor's advisor.[1][2] Coonce was Professor of Mathematics at Minnesota State University, Mankato, at the time of the project's founding, and the project went online there in fall 1997. Coonce retired from Mankato in 1999, and in fall 2002 the university decided that it would no longer support the project. The project relocated at that time to North Dakota State University.

Maslow's hierarchy of needs Maslow's hierarchy of needs, represented as a pyramid with the more basic needs at the bottom[1] Maslow's hierarchy of needs is a theory in psychology proposed by Abraham Maslow in his 1943 paper "A Theory of Human Motivation" in Psychological Review.[2] Maslow subsequently extended the idea to include his observations of humans' innate curiosity. His theories parallel many other theories of human developmental psychology, some of which focus on describing the stages of growth in humans. Maslow used the terms "physiological", "safety", "belongingness" and "love", "esteem", "self-actualization", and "self-transcendence" to describe the pattern that human motivations generally move through. Maslow's theory was fully expressed in his 1954 book Motivation and Personality.[5] The hierarchy remains a very popular framework in sociology research, management training[6] and secondary and higher psychology instruction.

Klein’s dessins d'enfant and buckyball We saw that the icosahedron can be constructed from the alternating group A_5 by considering the elements of a conjugacy class of order 5 elements as the vertices and edges between two vertices if their product is still in the conjugacy class. This description is so nice that one would like to have a similar construction for the buckyball. But, the buckyball has 60 vertices, so they surely cannot correspond to the elements of a conjugacy class of A_5 . But, perhaps there is a larger group, somewhat naturally containing A_5 , having a conjugacy class of 60 elements? This is precisely the statement contained in Galois' last letter.

darning sampler I thought this to be a quite interesting way of presenting and preserving a darning sampler. Surely, there is no way I could know if this was done by its owner or later by one of the family members. May be this is very normal to a German lady and is mundane. Nevertheless, of all the zillion samplers, I have not yet seen one like this. It is sewn into a form of envelop and the bearer had something in mind to place in it.

Vladimir Voevodsky, acclaimed mathematician who won Fields Medal, dies at 51 Russian Vladimir Voevododsky won the 2002 Fields Medal Prize at the annual International Congress of Mathematics in Beijing. Voevodsky, a professor at the Institute for Advanced Study in Princeton, N.J., was recognized for developing new theories in topology, or the science of shapes. (LIU YU/Associated Press) Vladimir Voevodsky, a mathematician who grew up in Russia before coming to the United States, where his work was recognized with the Fields Medal, often regarded as the equivalent of the Nobel Prize for mathematics, died Sept. 30 in Princeton, N.J. He was 51.

crochet: granny bunting (a pattern)... - Lilley's handcrafted lovelies As promised here is my granny bunting pattern. I'm quite excited but also a little nervous posting the pattern as I've never done this before! My sister successfully completed her bunting in 2 and a half hours and didn't ring me once, she normally rings me for pattern reading advice regularly but was under strict instructions to try and work it all out for herself this time!!

Geometric Constructions This is a web version of a teacher's workshop presented at Bridges 2004Appeared in: Bridges for Teachers, Teachers for Bridges, 2004 Workshop Book, Mara Alagic and Reza Sarhangi eds., pp. 31-42. “Slide-Together” Geometric Paper Constructions George W. Hart Computer Science Dept. Stony Brook University Abstract Fuzzy Thoughts: mini alien pattern Okay, I decided to post the pattern a day early, since you seem so impatient to knit them! There are directions for both circular knitting and flat knitting. I've tried both and the aliens look just the same. Knit with sport weight yarn, they turn out about 1.5" tall. You could knit them with other weight yarn, with appropriate needles, but I'm not sure what size they would be. These knit up super fast, so you can make pocketfuls in just an hour or two!

the-lives-of-alexander-grothendieck-a-mathematical-visionary Photo Alexander Grothendieck, who died on Nov. 13 at the age of 86, was a visionary who captivated the collective psyche of his peers like no one else. To say he was the No. 1 mathematician of the second half of the 20th century cannot begin to do justice to him or his body of work. Let’s resist the temptation to assign a number to a man of numbers. #.Tks8-kjWKhs As more and more journalists are finding, APIs are a great way to get data for your Web applications and projects. An API, or application programming interface, enables software programs to communicate with one another. (Chrys Wu wrote a helpful intro here.) To give you a better understanding of how they can help you, I’ve outlined some of the best APIs for finding content and explained how you can use open-source programming tools to glean information from them. Twitter API

blog » the notebook of cartographer zachary forest johnson Binning is a general term for grouping a dataset of N values into less than N discrete groups. These groups/bins may be spatial, temporal, or otherwise attribute-based. In this post I’m only talking about spatial (long-lat) and 2-dimensional attribute-based (scatterplot) bins. Such binnings may be thought of as 2D histograms.