Talk:Open book decomposition
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I thought that Lawsons theorem is just about odd-dimensional spheres, not about arbitrary odd-dimensional manifolds? --Suhagja (talk) 07:38, 23 January 2013 (UTC)
Why call it a "fibration" if it is fact a fibre bundle?
[edit]The section Definition and construction begins as follows:
"Definition. An open book decomposition of a 3-dimensional manifold M is a pair (B, π) where
- B is an oriented link in M, called the binding of the open book;
- π: M \ B → S1 is a fibration of the complement of B such that for each θ ∈ S1, π−1(θ) is the interior of a compact surface Σ ⊂ M whose boundary is B. The surface Σ is called the page of the open book."
A "fibration" is a generalization of a fibre bundle.
But isn't π : M \ B → S1 a genuine fibre bundle projection?
If this is correct, it is much better to label π as such, rather than the much more general concept of a fibration.
I hope someone familiar with this subject can make this definition more precise.