Liouville
[ lyoo-veel; English lee-oo-vil ]
/ lyuˈvil; English ˌli uˈvɪl /
noun
Jo·seph
[zhaw-zef; English joh-zuh f, -suh f] /ʒɔˈzɛf; English ˈdʒoʊ zəf, -səf/,1809–82,
French mathematician.