_onenormest_product(operator_seq, t=2, itmax=5, compute_v=False, compute_w=False, structure=None)
Matrices whose 1-norm of product is to be computed.
A positive parameter controlling the tradeoff between accuracy versus time and memory usage. Larger values take longer and use more memory but give more accurate output.
Use at most this many iterations.
Request a norm-maximizing linear operator input vector if True.
Request a norm-maximizing linear operator output vector if True.
A string describing the structure of all operators. Only upper_triangular
is currently supported.
An underestimate of the 1-norm of the sparse matrix.
The vector such that ||Av||_1 == est*||v||_1. It can be thought of as an input to the linear operator that gives an output with particularly large norm.
The vector Av which has relatively large 1-norm. It can be thought of as an output of the linear operator that is relatively large in norm compared to the input.
Efficiently estimate the 1-norm of the matrix product of the args.
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