Nonnegative curvature and cobordism type
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- Dessai, A. & Tuschmann, W. Math. Z. (2007) 257: 7. doi:10.1007/s00209-006-0092-1
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We show that in each dimension n = 4k, k≥ 2, there exist infinite sequences of closed simply connected Riemannian n-manifolds with nonnegative sectional curvature and mutually distinct oriented cobordism type.