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Itaú Unibanco discloses BRL 50 million related-party call center agreement with Porto Seguro affiliate

Itau Unibanco ( ($ITUB) ) has provided an announcement. On January 5, 2026, Itaú Unibanco Holding S.A. disclosed a related-party transaction ...
IEEE

Double Constacyclic Codes Over Two Finite Commutative Chain Rings

Abstract: Many kinds of codes which possess two cycle structures over two special finite commutative chain rings, such as ${\mathbb {Z}}_{2}{\mathbb {Z}}_{4}$ -additive cyclic codes and quasi-cyclic ...