eigsh

iskra.sparse_linalg.eigsh(A: Tensor, M: Tensor | None = None, k: int = 1, sigma: float | None = None, maxiter: int = 200, tol: float = 1e-08, bwd_method: Literal['unroll', 'individual', 'truncate', 'dodik-fixedpoint', 'dodik-invert'] = 'individual', bwd_max_iter: int = 100, bwd_eps: float = 1e-12) → tuple[Tensor, Tensor][SOURCE]