"Jean Leray (French: [l\u0259\u0281\u025B]; 7 November 1906 \u2013 10 November 1998) was a French mathematician, who worked on both partial differential equations and algebraic topology."@en . . "French mathematician" . . . "1998Z"^^ . . "1998-11-10Z"^^ . . . . . "1906-11-07Z"^^ . "Leray, Jean"@en . "1906Z"^^ . . . . "Jean Leray"@en .