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font-family:"Times New Roman"">(English follows)<o:p></o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>Le Prix André Aisenstadt 2009 est décerné à Valentin Blomer de l’Université de Toronto.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>Dès après l’obtention de sa maîtrise en 2001,Valentin Blomer s’est imposé en théorie de nombres par la résolution d’un problème de fond difficile de Paul Erdös ce qui lui permit d’obtenir son doctorat sous la supervision de Jorg Brudern de l’Université de Stuttgart en une seule année! Après avoir fait son stage postdoctoral à l’Université de Toronto en 2003-2004, il retourna à Göttingen en Allemagne pour y être professeur adjoint. Il est de retour à Toronto comme professeur adjoint depuis 2005.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>La solution de Blomer au problème d’Erdös tournait autour de l’obtention d’estimés précis pour le nombre d’entiers inférieur à une borne donnée, représentés par une forme binaire quadratique, cette borne étant suffisamment petite pour que les coefficients de la forme aient un impact significatif sur la forme de la solution. Ce genre de question remonte à Lagrange et Gauss, il n’est donc pas surprenant que les travaux de Blomer aient eu un tel impact.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Récemment, Blomer s’est concentré sur le problème de sous-convexité des L-fonctions automorphes, obtenant dans ses articles avec Harcos et Michel, les meilleurs résultats connus sur cette question centrale, sous différents aspects. Encore récemment, Blomer et Harcos ont obtenu la décomposition spectrale complète pour le problème de convolution décalé, une question qui remonte à Selberg.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>Blomer a plusieurs autres excellents travaux dans toutes les directions. Il génère une tonne d’idées créatrices, appuyées par de grandes prouesses techniques, ce qui promet beaucoup pour le futur.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>La recherche exceptionnelle de Valentin Blomer a été reconnue par plusieurs prix et honneurs y compris le Prix Heinz Maier-Leibniz 2005 en Allemagne et la bourse de recherche Sloan en 2008.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>Valentin Blomer est également un pianiste exceptionnel qui a présenté des concerts à travers l’Europe, au Japon et au Canada; il a même gagné une compétition internationale en Belgique en 2002.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>C’est avec un grand plaisir que le CRM décerne le Prix André-Aisenstadt à Valentin Blomer en reconnaissance de ses accomplissements en mathématiques. Le Prix sera remis lors d’une cérémonie qui se tiendra le 20 mars 2009 au CRM.</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>**************************</o:p></span></pre><pre><span style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman""><o:p>The 2009 André-Aisenstadt Prize is awarded to Valentin Blomer of the University of Toronto. </o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Following his master's degree in 2001, Valentin Blomer burst onto the number theory scene by solving a deep and difficult problem of Paul Erdos, allowing him to obtain his Ph.D. in 2002 under Jorg Brudern at the University of Stuttgart, after just one year! After spending the 2003/4 year as a <span style="mso-spacerun: yes"> </span>post-doctoral fellow at the University of Toronto, he returned to Germany to start as an assistant professor at Gottingen, and has been back in Toronto, as an assistant professor, since 2005.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Blomer's solution to Erdos's problem revolved around getting precise estimates for the number of integers up to a given point represented by a given binary quadratic form, where that point is small enough that the coefficients of the form will have significant impact on the shape of the solution. This type of question going back to Lagrange and Gauss, so it is notsurprising that Blomer's work on this has had such an impact.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Recently Blomer has focused on the subconvexity problem for automorphic L-functions, obtaining in papers with Harcos and Michel the best results known in this central question, in several different aspects. Also recently Blomer and Harcos obtained the complete spectral decomposition for the shifted convolution problem, a question that goes back to Selberg.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Blomer has many other fine works in all sorts of different directions. He seems to generate a wealth of ideas, aided by great technical prowess. There is obviously much more to come.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>Valentin Blomer's exceptional research has been recognized by several prizes and honors, <span style="mso-spacerun: yes"> </span>including a 2005 Heinz Maier-Leibnitz award in Germany and a 2008 Sloan Research Fellowship. Valentin Blomer also is an exceptional pianist, having performed throughout Europe, in Japan and in Canada, and even winning an international competition in Belgium in 2002.</o:p></span></pre><pre><span lang="EN-CA" style="font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:"Times New Roman";
mso-ansi-language:EN-CA"><o:p>It is with great pleasure that the CRM awards the 2009 André-Aisenstadt Prize to Dr. Valentin Blomer in recognition of research achievement in mathematics. The Prize will be awarded at a ceremony to be held On March 20 2009 at the CRM.</o:p></span></pre><!--EndFragment--> <br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Christiane Rousseau, directrice</div><div>Centre de recherches mathématiques</div><div>Université de Montréal</div><div>C.P. 6128, succ. Centre-ville</div><div>Montréal, Qc</div><div>H3C 3J7</div><div>Tél: 514 343 7502</div><div>Fax: 514 343 2254</div><div><a href="mailto:directrice@crm.umontreal.ca">directrice@crm.umontreal.ca</a></div><div><br></div></div></div></div></div></span><br class="Apple-interchange-newline"> </div><br></body></html>