?????? ?????
?????	?? ????? ???? ????????? ?? ?? , United States
?????	?? ????? ???? (?? ???) ??????? ??????? , United States
?????	??????
????? ????	New College of Florida
???? ?????
?????? ???????	Morris Hirsch
????? ??????????	Richard Canary

?????? ????? ( ?????????? : William Thurston ) ???????? ????? ??????? . ?? ???????? ???? ????????? ??????? ??? ????. ??  ??? ???? ???????? ? ?? ??? ???? ?????? ????????? ???? ?????.

?????????? [ ???????? ]

?????????? ??????????????? ????????? ??????? ????????≪ William Thurston ≫? ??????????? ????????????.( ? ??????? ???? ????????? ??????????????).

?????? ?????????? ?????? ????? ???? ???? ????? ???????? ?????????????.

---

???????? ????????????