As the title suggests, I'm trying to read this paper. But it demands a lot of prerequisite knowledge that I'm not just unaware of, but I'm having trouble narrowing down what books and notes I can take up to bridge the gap between my current knowledge and knowledge required to understand this paper.
My background is modest, I'm currently taking a course in p-adic analysis. I have finished a majority of Harris's Algebraic Geometry, and perused through Hartshorne's book, and made major progress with Vakil's The Rising Sea.
You can find the paper here