%0 Journal Article %T Automorphisms of the 3-sphere that preserve spatial graphs and handlebody-knots %A Yuya Koda %J Mathematics %D 2011 %I arXiv %X We consider the group of isotopy classes of automorphisms of the 3-sphere that preserve a spatial graph or a handlebody-knot embedded in it. We prove that the group is finitely presented for an arbitrary spatial graph or a reducible handlebody-knot of genus two. We also prove that the groups for "most" irreducible genus two handlebody-knots are finite. %U http://arxiv.org/abs/1106.4777v2