Geodesic
Wold-type decompositions for pairs of commutative semigroups generated by isometries
Funkcionalʹnyj analiz i ego priloženiâ, Tome 56 (2022) no. 1, pp. 51-65.

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In this paper we analyze connections between Wold-type decompositions of bi-isometries and pairs of semigroups of isometries, where at least one of semigroups is a product semigroup generated by two isometries.
Keywords: commuting isometries, Wold decomposition, semigroup of isometries. 
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T. Bînzar; C. Lăzureanu. Wold-type decompositions for pairs of commutative semigroups generated by isometries. Funkcionalʹnyj analiz i ego priloženiâ, Tome 56 (2022) no. 1, pp. 51-65. http://geodesic.mathdoc.fr/item/FAA_2022_56_1_a3/

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