We classify, up to contact
isotopy, all tight contact structures on a family of Seifert fibered three-manifolds
M−,, satisfying 0 < < . We show that, if [r0,r1,…,rl] is the continued
fraction expansion of −, there are exactly |r0+5||r1+1|⋯|rl+1| tight contact
structures on such Seifert fibered three-manifolds M−,, as above, so all the
tight contact structures are holomorphically fillable.
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