A very good primer to state-space models (from which Mamba is based on) is The Annotated S4 [1]. If you want to dive into the code I wrote a minimal single-file implementation of Mamba-2 here [2].

[1]: https://srush.github.io/annotated-s4/

[2]: https://github.com/tommyip/mamba2-minimal

This video is good: https://www.youtube.com/watch?v=N6Piou4oYx8. As are the other videos on the same YouTube account.

For those who are text oriented: https://newsletter.maartengrootendorst.com/p/a-visual-guide-...

The paper author has a blog series but I don't think it's for general public https://tridao.me/blog/2024/mamba2-part1-model/