Let \(X\) be a manifold and \(f:X\to \mathbb {R}^k\) a continuous function. Show that for every \(\epsilon >0\) there is a smooth function \(g:X\to \mathbb {R}^k\) such that \[ \|g(x)-f(x)\|<\epsilon \] for every \(x\in X\).
Question
Math 6510 • Differentiable Manifolds
Winter 2006 • Question 1