Lebesgue type decompositions for linear relations and Ando’s uniqueness criterion

Seppo Hassi1, Zoltán Sebestyén2, Henk de Snoo3
1Department of Mathematics and Statistics, University of Vaasa, P.O. Box 700, 65101 Vaasa, Finland,
2Department of Applied Analysis, Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117, Budapest, Hungary
3Bernoulli Institute for Mathematics, Computer Science, Artificial Intelligence, University of Groningen, P. O. Box 407, 9700 AK, Groningen, Nederland

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