- published: 28 Jan 2016
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Sir Michael Francis Atiyah, OM, FRS, FRSE (born 22 April 1929) is a British mathematician working in geometry.
Atiyah grew up in Sudan and Egypt but spent most of his academic life in the United Kingdom at Oxford and Cambridge, and in the United States at the Institute for Advanced Study. He has been president of the Royal Society (1990–1995), master of Trinity College, Cambridge (1990–1997), chancellor of the University of Leicester (1995–2005), and president of the Royal Society of Edinburgh (2005–2008). He is currently retired, and is an honorary professor at the University of Edinburgh.
Atiyah's mathematical collaborators include Raoul Bott, Friedrich Hirzebruch and Isadore Singer, and his students include Graeme Segal, Nigel Hitchin and Simon Donaldson. Together with Hirzebruch, he laid the foundations for topological K-theory, an important tool in algebraic topology, which, informally speaking, describes ways in which spaces can be twisted. His best known result, the Atiyah–Singer index theorem, was proved with Singer in 1963 and is widely used in counting the number of independent solutions to differential equations. Some of his more recent work was inspired by theoretical physics, in particular instantons and monopoles, which are responsible for some subtle corrections in quantum field theory. He was awarded the Fields Medal in 1966, the Copley Medal in 1988, and the Abel Prize in 2004.
Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.
She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".
Que te dit ton coeur, lui qui ne demande qu'à voir
Au-delà des leurres, des fruits du hasard
Il est des mystères, des songes qui parfois t'égarent
Comme en une prière, il suffit de croire
Quel est le visage qu'adoptera ton destin
De son début jusqu'à la fin
Il suffit de croire
Observe les présages qui jalonnent ton chemin
Que te dit ton coeur, lui qui ne demande qu'à voir
Au-delà des leurres, des fruits du hasard
Refrain:
Entre les lignes, Kechef Touha
Y voir un signe, Min Al Rabba
Frôler les cimes, Fi Rouhouqa
Toucher l'infime, Al Tarika
Tout près de la Terre
Les yeux caressant le ciel
Cherchent l'éphémère en une étincelle
J'attends cette fleur
Ce doux don de l'éternel
Qui, dès qu'il se meurt
Sonne comme un rappel
Quel est le visage qu'adoptera ton destin
De son début jusqu'à la fin
Il suffit de croire
Observe les présages qu jalonnent ton chemin
Et t'expriment des lendemains
Sonnent comme un rappel
Refrain
Certaines vérités empruntent de singulières voix
Il suffit de croire
Fuit la cécité et soit éclairé dans tes choix
Dans les courbes que dressent tes pas