Beites, Patrícia DamasNicolás, AlejandroVitoria, Jose2026-01-202026-01-202023-11-12BEITES, P. D, NICOLÁS, A. P, & VITÓRIA, J. D (2023). Multiplication of closed balls in $\mathbb{C}^n$. Turkish Journal of Mathematics 47 (7): 1899-1914. https://doi.org/10.55730/1300-0098.34711300-0098http://hdl.handle.net/10400.6/19691Motivated by circular complex interval arithmetic, some operations on closed balls in Cn are considered. Essentially, the properties of possible multiplications for closed balls in Cn, related either to the Hadamard product of vectors or to the 2-fold vector cross product when n ∈ {3, 7}, are studied. In addition, certain equations involving the defined multiplications are solved.engClosed ballmultiplication2-fold vector cross productHadamard product of vectorsjournal article10.55730/1300-0098.34711303-6149