Is it possible an unemployed person with BS degree without supervisor to write a dissertation and if yes,?

Question

where he has to defend it and what kind of degree he will get.(more info about: defending dessertation - procedures, address, preparation...)

Answer 1

Sorry, you can't write one on your own and just go defend it - you need to do that at a university. Your degree is not only based on your dissertation, but also on your coursework and your qualifying exam scores - all of which require going to a university.

So go apply to grad school if you want a degree. But if you already think you know the field, you don't need a PhD to publish original research - you just need to be able to back it up.

Answer 2

You can write it, but if you're not in a degree program, you can't use it to get a degree.

Answer 3

Sure, just declare yourself as "self employed".