Ant_222CJ, how would you translate an Anatoliy Dneprov's book's title — "The equation of (for) immortality". I'd go for "of"...
I don't advise translating a title until you've translated the whole book.

In other words, a translator might have to know the contents of the book to decide which shade of meaning would be best to express that title in a foreign language. I assume you are familiar with the book and find
of better than
for. I'm willing to trust your judgment on this point.

CJ