The lower bound theorem and minimal triangulations of sphere bundles over the circle - Bangalore: Department of Mathematics, Indian Institute of Science: 2006 - For integers d ≥ 2 and ε = 0 or 1, let S 1,d−1 (ε) denote the sphere product S 1 × S d−1 if ε = 0 and the twisted sphere product S 1 ×− S d−1 if ε = 1. The main results of this paper are : (a) if d ≡ ε (mod 2) then S 1,d−1 (ε) has a unique minimal triangu

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