The tubular embedding of a Submanifold of another Manifold is an Embedding such that whenever , where is the unit Ball in centered at 0. The tubular neighborhood is also called the Product Neighborhood.

**References**

Rolfsen, D. *Knots and Links.* Wilmington, DE: Publish or Perish Press, pp. 34-35, 1976.

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1999-05-26