Hi everyone, I'm new to the forums, nice to meet you all. I am starting an honours research project basing my topic on the paper by Deyan Radev ("Systemic Risk and Sovereign Debt in the Euro Area", paper is attached). I was wondering if anyone could give me a few suggestions as to what statistical/mathematics texts I could read in order to familiarize myself with the mathematical proofs from Appendix 1 to 4, more specifically I am having the most trouble understanding the proof in Appendix 3. I have a relatively good mathematical background (studied pure mathematics for my undergraduate) however I am a bit weak in statistics, although I do have a good foundation of introductory econometrics and probability theory. Any suggestions as to what I can read to help me understand those proofs will be much appreciated! Thanks