Hello All
Prof Oliver has hit the nail on the head with his papers.
Too many neutrons do not cause a supernova.
The evolution of a star or during its phase of life creates elements upto Fe and Ni. The elements segregate into layers as per their mass. Iron and Ni near the outer core and H and He near the surface of the solar envelope.
As the core of the sun loses it mass and density it also loses gravity control of the solar envelope allowing it to expand into a giant star. In time the inner core loses its abilty to control energy release and at the critical moment release high energy photons that hit the Fe atoms breaking them down by fission chain reactions to neutrons releasing huge amounts of energy that cause fusion chain reactions.All this occurs too quickly and the solar envelope explodes causing the supernova. At the same time the inner core is rejuvinated by Neutrons from the Iron and other elements creating a neutron core. If there is enough matter the neutrons will degenerated to quarks/preon partical composites leading to the formation of a compacted core that prevents light from escaping.
As for the papers Prof Oliver read this link
http://www.omatumr.com/papers.html