quasidefinite

English

Etymology

quasi- +‎ definite

Adjective

quasidefinite (not comparable)

1. (mathematics) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.
   • 2016, Carlos Álvarez-Fernández, Gerardo Ariznabarreta, Juan C. García-Ardila, Manuel Mañas, Francisco Marcellán, “Transformation theory and Christoffel formulas for matrix biorthogonal polynomials on the real line”, in arXiv‎^[1]:

     The transformation theory is finally discussed in the context of the 2D non-Abelian Toda lattice hierarchy, understood as the theory of continuous transformations of quasidefinite sesquilinear forms.