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Ali Taghavi
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Totally non parallelizable manifold

Does there exist a manifold M which all iterated tangent bundles are non parallelizable manifolds? That is$ M, TM , T^2(M), \ldots ,T^n(M)\ldots$ are non parallelizable manifold?

What is an example of a manifold which is not parallelizable, but $T^{n}(M)$ is parallelizable for some n?

Ali Taghavi
  • 356
  • 8
  • 31
  • 123