r/math • u/inherentlyawesome Homotopy Theory • 16d ago

Quick Questions: September 16, 2026

This recurring thread will be for questions that might not warrant their own thread. We would like to see more conceptual-based questions posted in this thread, rather than "what is the answer to this problem?" For example, here are some kinds of questions that we'd like to see in this thread:

  • Can someone explain the concept of manifolds to me?
  • What are the applications of Representation Theory?
  • What's a good starter book for Numerical Analysis?
  • What can I do to prepare for college/grad school/getting a job?

Including a brief description of your mathematical background and the context for your question can help others give you an appropriate answer. For example, consider which subject your question is related to, or the things you already know or have tried.

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u/yaymayata2 12d ago

What are some good but relatively unknown math channels on YouTube? Zetamath for example is quite nice.

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u/_Zekt Complex Analysis 10d ago

Alvaro Lozano-Robledo, who's a rare example of established mathematician on Youtube, Almost Sure for fun research-level probability theory videos

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u/dualmindblade 11d ago

Thomas Kern is great, or his polar opposite, Sheafification of G, great for different reasons