Summary: ( )
2009 8 5
( )
(X, B, µ) T (X, B, µ, T)
(MDS) MDS Poincar´e
Theorem 1. Y B µ(Y ) > 0 Y
T-
^T(x) = Tm(x)
(x) m(x)
(Y, BY , 1
µ(Y )
µ, ^T)
MDS Y X MDS
X

X
T
--- X

Source: Akiyama, Shigeki - Department of Mathematics, Niigata University

Collections: Mathematics