Summary: DOUBLE KNOT SURGERIES TO S4
Abstract. It is known that S4
is a union of two fishtails, and
is a union of two cusps (glued along their boundaries).
Here we prove that for any choice of knots K, L S3
knot surgery operations S4
K,L and S2
along both of these fishtails and cusps, respectively, do not change
the diffeomorphism type of these manifolds.