Show that \(\pi _1(\Sigma _2)\) contains \(\pi _1(\Sigma _3)\) as a normal subgroup.
Question
Math 6510 • Differentiable Manifolds
Fall 2017 • Question 9
Question
Fall 2017 • Question 9
Show that \(\pi _1(\Sigma _2)\) contains \(\pi _1(\Sigma _3)\) as a normal subgroup.