Concomitants and syzygies of spinors in 3-dimensional euclidean space

Summary In 3-dimensional Euclidean space, explicit formulae for the Hermitean concomitants of two irreducible spinsors of typen+1/2] are obtained, where n is a positive integer. Further, a method, by means of which the syzygies of degree2 in these concomitants can be obtained, is described and is illustrated by considering two irreducible spinors of type3/2]. Entrata in Redazione il 16 maggio 1972.