With the permission of the instructor, the Department and the Registrar of the School of Graduate Studies and Research, undergraduate students may take for credit graduate courses for which they have the prerequisite background. This permission will normally be consistent with first-class standing in the mathematics or statistics courses of the first three years of their programs. Course descriptions are given in the Calendar of the School of Graduate Studies and Research. The following courses should be noted in particular although all may not be given in the same year.