I'm working on a mathematics paper, and I'm wondering if anyone can tell me what criteria are required to get published? I've gone some googling and found some good information and a journal I want to publish to, but I'm more specifically wondering what type of mathematics tends to get published? Topology and combinatorics seems to get the most attention and is the most advanced, or am I wrong? My concern is that the mathematics I'm working on isn't advanced enough. The Riemann Hypothesis relates to complex analysis and reads like, but most other unsolved or compelling topics are of other fields. Is there a favorism?