  We use hyperbolicity of golden-mean renormalization of dissipative
H\'enon-like maps to prove that the boundaries of Siegel disks of sufficiently
dissipative quadratic complex H\'enon maps with golden-mean rotation number are
topological circles.
  Conditionally on an appropriate renormalization hyperbolicity property, we
derive the same result for Siegel disks of H\'enon maps with all eventually
periodic rotation numbers.

Dynamical Systems