OAI/NumberTheory/TwoPoint/Circuits/CircuitWalshExpansion.lean

GitHub source file

3 declarations, 0 contain sorry, 0 declared as axioms

Finite Walsh inversion and squared-error identities. These supply the Fourier truncations used in the circuit approximation argument.

  1. lemma OAI.TwoPointCorrelations.walsh_kernel line 13
  2. theorem OAI.TwoPointCorrelations.walsh_inversion line 31
  3. theorem OAI.TwoPointCorrelations.walsh_parseval line 46