Twisting 2-cocycles for the construction of new non-standard quantum groups.

Introduces a class of 2-cocycles defined explicitly on the generators of certain multiparameter standard quantum groups. Generalizations of both the Cremmer-Gervais deformation of SL(3) and the esoteric quantum groups of Fronsdal and Galindo; Twisting of the familiar standard quantum groups to generate examples of non-standard quantum groups.