Ah et avant que tu demande :
http://www.topuniversities.com/university-rankings/university-subject-rankings/2012/mathematics
http://www.topuniversities.com/university-rankings/world-university-rankings/2012?delta[]=field_ranking_scores_71962&delta[]=field_ranking_scores_71963&delta[]=field_ranking_scores_71964&delta[]=field_ranking_scores_71965&delta[]=field_ranking_scores_71966&delta[]=field_ranking_scores_71967&ugrad_course=&pgrad_course=&loc=Belgium&field_ranking_scores_71962=0.4&field_ranking_scores_71963=0.1&field_ranking_scores_71964=0.2&field_ranking_scores_71965=0.05&field_ranking_scores_71966=0.05&field_ranking_scores_71967=0.2&field_ranking_scores_71968=0&field_ranking_scores_71969=0&field_ranking_scores_71970=0&field_ranking_scores_71971=0&field_ranking_scores_71972=0&custom_ranking=&save_my_rankings_data_sort=2%2Casc%2C0&save_my_rankings_data_limit=50&save_my_rankings_data_search=&save_my_rankings_data_start=0