Online Tutor for Advanced Mathematics

I'm looking for an online tutor who is an expert in Differential Geometry, Real Analysis, Number Theory, and Topology. I consider myself to have a shallow understanding in these subjects, so I'm looking to deepen my knowledge and explore more advanced concepts.

Key Requirements:
- Proficiency in Differential Geometry, Real Analysis, Number Theory, and Topology
- Ability to provide engaging and thorough online tutoring sessions
- Experience in tutoring advanced students

Your role would be to conduct online video sessions to help me further understand these complex topics. I'm looking for a tutor who can explain concepts clearly and concisely, and who is patient and open to answering questions. The ideal candidate should have experience in tutoring advanced students and a deep understanding of the mentioned topics.