[Feature Request] Non-symmetric Toeplitz matrices

[MoiseRousseau]

🚀 Feature Request

Implementing non-symmetric Toeplitz matrices with fast algorithm for solve and inverse.

Motivation

I have a custom neural net which exhibit non-symmetric Toeplitz matrices.

Pitch

I have already started implementing non-symmetric Toeplitz matrices myself. This issue is just to let you know I am working on it. See https://github.com/MoiseRousseau/linear_operator/tree/Moise/non_sym_toeplitz

[gpleiss]

This feature would be a great addition to the library. We'd happily accept a PR. The file you probably want to modify is linear_operators/utils/toeplitz.py.