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from einops import rearrange | |
from torch import Tensor | |
import torch | |
def kronecker_decompose( | |
A: Tensor, m: int, n: int, *, k: int = 1, niter: int = 10 | |
) -> tuple[Tensor, Tensor]: | |
"""Frobenius-optimal decomposition of `A` into a sum of `k` Kronecker products. |