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Published online by Cambridge University Press: 26 February 2010
In an earlier paper [10], I presented a base for the kernel, and in particular for the null space of I - λo K ((p.39). I remarked then that the base did not quite correspond to the arrangement given by Zaanen (cf. [13; p. 280], [14; pp. 339, 342]). The purpose of the present paper is to present an alternative base which does correspond to Zaanen's arrangement.