Antieigenvalues and total antieigenvalues of normal operators ✩

We will study antieigenvalues, total antieigenvalues, antieigenvectors, and total antieigenvectors for normal operators. This will generalize the earlier work of the author and Karl Gustafson on normal matrices on finite dimensional spaces. We will also study antieigenvalues and total antieigenvalues of semigroups generated by accretive normal operators.  2002 Elsevier Science (USA). All rights reserved.