activity
20222026
most citedDoubly and triply extended MSRD codes

1 citations · 1 across the 6 of their papers we have counts for

collaborators

8 papers

cs.IT2026

On the structure of polynomial ideal codes and additive Reed--Solomon codes

Umberto Martínez-Peñas, Rubén Rodríguez-Ballesteros

We study structural properties of polynomial ideal (PI) codes and additive Reed--Solomon (aRS) codes in the folded Hamming metric (equivalently, the Hamming metric over a larger al…

cs.IT2026

Upper bounds on the length of quasi-MDS codes

Umberto Martínez-Peñas, Rubén Rodríguez-Ballesteros

We study upper bounds on the length of -linear QMDS codes in the folded Hamming distance relative to their other parameters, especially the field size . Via a corre…

cs.IT2024

Linear codes in the folded Hamming distance and the quasi MDS property

Umberto Martínez-Peñas, Rubén Rodríguez-Ballesteros

In this work, we study linear codes with the folded Hamming distance, or equivalently, codes with the classical Hamming distance that are linear over a subfield. This includes addi…

cs.IT2024

New constructions of MSRD codes

Umberto Martínez-Peñas

In this work, we provide four methods for constructing new maximum sum-rank distance (MSRD) codes. The first method, a variant of cartesian products, allows faster decoding than kn…

cs.IT2024

Distributed matrix multiplication with straggler tolerance using algebraic function fields

Adrián Fidalgo-Díaz, Umberto Martínez-Peñas

The problem of straggler mitigation in distributed matrix multiplication (DMM) is considered for a large number of worker nodes and a fixed small finite field. Polynomial codes and…

cs.IT2023

Integer sequences that are generalized weights of a linear code

Elisa Gorla, Elisa Lorenzo García, Umberto Martínez-Peñas +1

Which integer sequences are sequences of generalized weights of a linear code? In this paper, we answer this question for linear block codes, rank-metric codes, and more generally…

cs.IT2023

Sum-rank metric codes

Elisa Gorla, Umberto Martínez-Peñas, Flavio Salizzoni

Sum-rank metric codes are a natural extension of both linear block codes and rank-metric codes. They have several applications in information theory, including multishot network co…

cs.IT2022★ 1 cited

Doubly and triply extended MSRD codes

Umberto Martínez-Peñas

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 mul…