who did darwin copublish his book with?

Question

also, what was his relationship to charles lyell, and richard owen?

Answer 1

Which book? He published several.

Darwin was friends with Lyell. See http://en.wikipedia.org/wiki/Charles_Lyell
for more.

Richard Owen was critical of Darwin's theory of evolution; see the wikipedia article on Owen (makes for intereseting reading).

Answer 2

Darwin had no co-authors. It is sometimes said that Wallace developed the ideas at the same time. Darwin himself was generous with his praise of Wallace and Wallace's work. However this isn't really giving Darwin the credit he deserves.
Darwin had been developing his ideas for twenty years. He was reluctant to publish, because he knew that they would be controversial, and his wife was a devout christian. However, eventually news came to him that Wallace was going to publish similar ideas, so Darwin decided there was no point keeping his theory a secret.
By all reports, Darwin was actually quite a decent human being on a personal level. If you look at "origin of the species", he is extremely generous in giving out credit to others, probably too generous. He goes on and on about all these other clever people and how much he respects them, and that his ideas are just one small addition to the brilliant work of others.

Others here have answered the relationship with Lyell and Owen.

Answer 3

Wallace and Darwin developed the theory separately. Wallace wrote to Darwin setting out his theory (Walllace admired Darwin greatly). When Darwin realised that Wallace had developed the theory he arranged a joint announcement at the Royal Society. Wallace was still somewhere in Indonesia at the time, so Darwin got much of the credit.

Answer 4

Was it Alfred Russell Wallace? I don't think he was listed as a coauthor, but he was very influential to Darwin's publishing On the Origin of Species.