I have two questions regarding the development of mathematics:
1) Is there an example where in mathematics, a collaboration has led to the discovery of another result? I already know something like the Polymath project, or the Hilbert program and the Hamilton's program.
2) Is there an example of how individual secrecy and lone effort in mathematics has led to a breakthrough discovery without much contact with the math community? The ones I am aware of are like Andrew Wiles, and Ramanujan.
I just want some more examples cause I was quite curious with regards to certain approaches to mathematical development.
In recent time, Gregory Perelman's proof of the Poincare Conjecture wins the Oscars for the best mathematical work done in complete secrecy.
If you go back a few centuries, almost all mathematical work was done in secrecy. For e.g. Newton's invention of calculus was so secret that he did not publish it for several years after inventing it that it led to the controversy with Leibnitz who also invented calculus independently.