1. L2 theory
The depth-2 fully-connected ridgelet theory in Hilbert space. The overview follows the publication order of arXiv:2106.04770v2; the remaining sections follow the Lean dependency order.
- 1.1. L2 theory: arXiv:2106.04770v2 implementation map
- 1.2. Fourier conventions and Hilbert spaces
- 1.3. Unitary coordinates and their Fourier construction
- 1.4. Synthesis, ridgelets, and reconstruction
- 1.5. Null space and the general solution
- 1.6. Standard activation functions
- 1.7. Further results from the source manuscript