hiː ɪz ˈɔːlsoʊ wˈɛl nˈoʊn fɔːɹ hɪz wˈɜːk ˌɔn sˈɪɡməfˈʌŋkʃənz ˌɔn jˌuːnɪvˈɜːsəl spˈeɪsᵻz ʌv dʒækˈoʊbiən vɚɹˈaɪəɾiz ʌv ˌældʒɪbɹˈeɪɪk kˈɜːvz ðæt ɡˈɪv ɪfˈɛktɪv səlˈuːʃənz ʌv ɪmpˈoːɹtənt ˈɪntɪɡɹəbəl sˈɪstəmz.
He is also well known for his work on sigma-functions on universal spaces of Jacobian varieties of algebraic curves that give effective solutions of important integrable systems.