RT info:eu-repo/semantics/article T1 Doubly and triply extended MSRD codes A1 Martínez Peñas, Umberto K1 Coding theory K1 Coding and Information Theory K1 Linearized Reed–Solomon codes K1 Doubly extended codes K1 Triply extended K1 Códigos Reed-Solomon linealizados K1 Códigos doblemente extendidos K1 Triplemente extendido K1 12 Matemáticas AB In this work, doubly extended linearized Reed–Solomon codes and triply extended Reed–Solomon codes are generalized. We obtain a general result in which we characterize when a multiply extended code for a general metric attains the Singleton bound. We then use this result to obtain several families of doubly extended and triply extended maximum sum-rank distance (MSRD) codes that include doubly extended linearized Reed–Solomon codes and triply extended Reed–Solomon codes as particular cases. To conclude, we discuss when these codes are one-weight codes. PB Elsevier SN 1071-5797 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/61245 UL https://uvadoc.uva.es/handle/10324/61245 LA eng NO Finite Fields and Their Applications, 2023, vol. 91, 102272 NO Producción Científica DS UVaDOC RD 24-nov-2024