Source: Duke Math. J. Volume 107, Number 3
(2001), 533-559.
We classify all complete embedded minimal surfaces in
ℝ3; with three ends of genus g and at least 2g+2
symmetries. The surfaces in this class are the Costa-Hoffman-Meeks
surfaces that have 4g+4 symmetries in the case of a flat middle
end. The proof consists of using the symmetry assumptions to deduce
the possible Weierstrass data and then studying the period problems in
all cases. To handle the 1-dimensional period problems, we develop a
new general method to prove convexity results for period
quotients. The 2-dimensional period problems are reduced to the
1-dimensional case by an extremal length argument.
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