http://en.wikipedia.org/wiki/Grigori_PerelmanIndeed he is Jewish. His father even lives in Israel.
Perelman is upset that the dishonesty of bullies is tolerated and accepted by people in the mathematical world. From what I can tell, integrity and a belief in morality are the reasons this man passed upon a million dollar prize. If he accepted the prize he is saying that he supports and aligns himself with a community which takes no stand against dishonesty. -- I am quite impressed with him.
A friend of mine alerted me to this man's story a few months back. It is a fascinating story [eleven pages!].
http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=1 [page one]
I think the most helpful parts of the article to understand Perelman's reasoning for not accepting the prize are the last three pages.
http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=9 [page nine]
http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=10 [page ten]
http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=11 [page eleven]
From pages ten and eleven:
Perelman repeatedly said that he had retired from the mathematics community and no longer considered himself a professional mathematician. He mentioned a dispute that he had had years earlier with a collaborator over how to credit the author of a particular proof, and said that he was dismayed by the discipline’s lax ethics. “It is not people who break ethical standards who are regarded as aliens,” he said. “It is people like me who are isolated.” We asked him whether he had read Cao and Zhu’s paper. “It is not clear to me what new contribution did they make,” he said. “Apparently, Zhu did not quite understand the argument and reworked it.” As for Yau, Perelman said, “I can’t say I’m outraged. Other people do worse. Of course, there are many mathematicians who are more or less honest. But almost all of them are conformists. They are more or less honest, but they tolerate those who are not honest.”
Read more: http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=10#ixzz0smQ1ZCNV
The prospect of being awarded a Fields Medal had forced him to make a complete break with his profession. “As long as I was not conspicuous, I had a choice,” Perelman explained. “Either to make some ugly thing”—a fuss about the math community’s lack of integrity—“or, if I didn’t do this kind of thing, to be treated as a pet. Now, when I become a very conspicuous person, I cannot stay a pet and say nothing. That is why I had to quit.” We asked Perelman whether, by refusing the Fields and withdrawing from his profession, he was eliminating any possibility of influencing the discipline. “I am not a politician!” he replied, angrily. Perelman would not say whether his objection to awards extended to the Clay Institute’s million-dollar prize. “I’m not going to decide whether to accept the prize until it is offered,” he said.
Read more: http://www.newyorker.com/archive/2006/08/28/060828fa_fact2?currentPage=11#ixzz0smQEw5df
I think its pretty lame that so many of the commonly available articles about this man are censored of an explanation of his reasoning. "Recluse math genius who lives in poverty refuses to accept million dollar prize; people are baffled!" He is also frequently made out, unjustly, to be mentally ill. I think his integrity and humility are the real story.