You could look at the curriculum of one of the quant finance programs, for example NYU Courant https://math-finance.cims.nyu.edu/ https://math-finance.cims.nyu.

You could look at the curriculum of one of the quant finance programs, for example NYU Courant https://math-finance.cims.nyu.edu/ https://math-finance.cims.nyu.edu/. For financial derivatives there are books by John Hull, Paul Wilmott, and many others. https://wilmott.com/ https://wilmott.com/ is a good site with a forum. There are finance working papers at SSRN https://papers.ssrn.com/sol3/jweljour_results.cfm?code=G1 https://papers.ssrn.com/sol3/jweljour_results.cfm?code=G1 and arXiv https://arxiv.org/archive/q-fin https://arxiv.org/archive/q-fin