.........

"Hamilton was also asked abut the Chinese
mathematicians Xi-Ping Zhu, from the University of
Zhongshan (Canton, China), and Huai-Dong Cao, from
the Lehigh University in Pennsylvania (USA), who last
June published a paper in the Asian Journal of
Mathematics. In the abstract of this paper the authors
state that they present “a complete proof of the Poincaré
and Geometrization Conjectures”. Hamilton is sure that
“there is no controversy” because both mathematicians
are “great researchers”. According to Hamilton, the
controversy surrounding the proof of Poincaré’s
Conjecture was caused by the press. He went on to say
that Perelman’s work “is difficult to understand” and at
some points even Perelman himself employs the term
“sketch”. “A sketch is an invitation to complete a finished work, to find a way of doing it better. But no criticism is implied in this, only the wish to help to solve a problem.

There is no controversy involved. Grisha is a model of
decorum and there is no dispute about who did what”.