pytc.solver.isdf_xtc_ccsd.contract_tucker_x_left_t2

pytc.solver.isdf_xtc_ccsd.contract_tucker_x_left_t2(t2, left_out, left_inner, u, z, *, occupied_pair_batch_size=8, rank_panel_size=128)

Factor-direct left X term; neither dense X nor a V⁴ tile is formed.

Parameters:

• t2 (jax.Array)

• left_out (jax.Array)

• left_inner (jax.Array)

• u (jax.Array)

• z (jax.Array)

• occupied_pair_batch_size (int)

• rank_panel_size (int)

Return type:

jax.Array