nonconvergence

noun

noun

Etymology From non- + convergence.

Failure to converge.

Some alternatives, notably constraint-preconditioned or projected Krylov methods, are relatively efficient, but they can suffer from numerical instability and even nonconvergence.2015, Cao Lu, Tristan Delaney, Xiangmin Jiao, “OPINS: An Orthogonally Projected Implicit Null-space Method for Singular and Nonsingular Saddle-point Systems”, in arXiv:

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