nonsingular

To put it another way, a spacetime is nonsingular when it is complete in the sense that the only reason any given path might not be extendible is that it's already infinitely long

Singularities and Black Holes Curiel, Erik 2009

This would include: the formation and decay of (nonsupersymmetric) black holes; graviton scattering at hyper-Planckian energies; physically continuous transitions from one topology, through a quantum state with no geometric interpretation, to a different topology; states where a submanifold of spacetime has a noncommutative geometry; states with a variety of apparent geometric singularities, where the physics is nonsingular.

Guest Post: Joe Polchinski on Science or Sociology? Sean 2007

Similarly a group can be defined as any homologue of the group of rotations of the sphere, or of the nonsingular

Algebra Pratt, Vaughan 2007

The term "nonsingular matrix" is one whose [[kernel]] is 0

Conservapedia - Recent changes [en] Aschlafly 2010

They also explore the eigenvalues, eigenvectors, and characteristic polynomial of a matrix; examine the important properties of nonnegative matrices that are part of the Perron – Frobenius theory; and study eigenvalue inclusion regions and sign-nonsingular matrices.

ebookshare 2009