NEW EXAMPLES OF DUALITY IN CHIRAL AND NONCHIRAL SUPERSYMMETRIC GAUGE-THEORIES

We present evidence for renormalization group fixed points with dual m agnetic descriptions in fourteen new classes of four-dimensional N = 1 supersymmetric models. Nine of these classes are chiral and many invo lve two or three gauge groups. These theories are generalizations of m odels presented earlier by Seiberg, by Kutasov and Schwimmer, and by t he present authors. The different classes are interrelated; one can fl ow from one class to another using confinement or symmetry breaking.