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papers

Publications (40)

cs.IT2026

Upper bounds on the length of quasi-MDS codes

Umberto Martínez-Peñas, Rubén Rodríguez-Ballesteros

The paper derives new upper bounds on the length of linear quasi‑MDS (QMDS) codes over finite fields by linking the problem to subspace packing and partial spread constructions fro…

#quasi-mds codes#length bounds#subspace packings#partial spreads
cs.IT2021

Sum-Rank BCH Codes and Cyclic-Skew-Cyclic Codes

Umberto Martínez-Peñas

cs.IT2026

Integer sequences that are generalized weights of a linear code

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

cs.IT2016

Unifying notions of generalized weights for universal security on wire-tap networks

Umberto Martínez-Peñas, Ryutaroh Matsumoto

cs.IT2026

Maximally recoverable codes with locality and availability

Umberto Martínez-Peñas, V. Lalitha

cs.IT2017

On asymptotically good ramp secret sharing schemes

Olav Geil, Stefano Martin, Umberto Martínez-Peñas +2

cs.IT2024

Private Information Retrieval from Locally Repairable Databases with Colluding Servers

Umberto Martínez-Peñas

math.RA2021

Theory and applications of linearized multivariate skew polynomials

Umberto Martínez-Peñas

cs.IT2019

Reliable and Secure Multishot Network Coding using Linearized Reed-Solomon Codes

Umberto Martínez-Peñas, Frank R. Kschischang

cs.IT2017

Bounding the number of common zeros of multivariate polynomials and their consecutive derivatives

Olav Geil, Umberto Martínez-Peñas

cs.IT2024

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

Umberto Martínez-Peñas, Rubén Rodríguez-Ballesteros

cs.IT2022

Doubly and triply extended MSRD codes

Umberto Martínez-Peñas

cs.IT2021

Optimal anticodes, MSRD codes, and generalized weights in the sum-rank metric

Eduardo Camps Moreno, Elisa Gorla, Cristina Landolina +3

cs.IT2023

Sum-rank metric codes

Elisa Gorla, Umberto Martínez-Peñas, Flavio Salizzoni

math.RA2018

Evaluation and interpolation over multivariate skew polynomial rings

Umberto Martínez-Peñas, Frank R. Kschischang

cs.IT2015

Refined analysis of RGHWs of code pairs coming from Garcia-Stichtenoth's second tower

Olav Geil, Stefano Martin, Umberto Martínez-Peñas +1

cs.IT2017

Relative generalized matrix weights of matrix codes for universal security on wire-tap networks

Umberto Martínez-Peñas, Ryutaroh Matsumoto

math.CO2025

The Clifford defect of a numerical semigroup

Eduardo Camps-Moreno, Adrián Fidalgo-Díaz, Umberto Martínez-Peñas +1

cs.IT2019

Universal and Dynamic Locally Repairable Codes with Maximal Recoverability via Sum-Rank Codes

Umberto Martínez-Peñas, Frank R. Kschischang

cs.IT2019

Theory of supports for linear codes endowed with the sum-rank metric

Umberto Martínez-Peñas

math.RA2019

Classification of multivariate skew polynomial rings over finite fields via affine transformations of variables

Umberto Martínez-Peñas

cs.IT2024

New constructions of MSRD codes

Umberto Martínez-Peñas

cs.IT2018

Skew and linearized Reed-Solomon codes and maximum sum rank distance codes over any division ring

Umberto Martínez-Peñas

cs.IT2016

On the roots and minimum rank distance of skew cyclic codes

Umberto Martínez-Peñas

cs.IT2024

Maximum Sum-Rank Distance Codes over Finite Chain Rings

Umberto Martínez-Peñas, Sven Puchinger

cs.IT2022

A general family of MSRD codes and PMDS codes with smaller field sizes from extended Moore matrices

Umberto Martínez-Peñas

cs.IT2021

Hamming and simplex codes for the sum-rank metric

Umberto Martínez-Peñas

cs.IT2024

Distributed matrix multiplication with straggler tolerance using algebraic function fields

Adrián Fidalgo-Díaz, Umberto Martínez-Peñas

math.RA2022

Zeros with multiplicity, Hasse derivatives and linear factors of general skew polynomials

Umberto Martínez-Peñas

cs.IT2024

Distributed matrix multiplication with straggler tolerance over very small field

Adrián Fidalgo-Díaz, Umberto Martínez-Peñas

cs.IT2016

Rank equivalent and rank degenerate skew cyclic codes

Umberto Martínez-Peñas

cs.IT2020

Locally Repairable Convolutional Codes with Sliding Window Repair

Umberto Martínez-Peñas, Diego Napp

cs.IT2023

Zipper Codes

Alvin Y. Sukmadji, Umberto Martínez-Peñas, Frank R. Kschischang

cs.IT2017

Generalized rank weights of reducible codes, optimal cases and related properties

Umberto Martínez-Peñas

cs.IT2025

Duals of multiplicity codes

Eduardo Camps Moreno, Adrián Fidalgo-Díaz, Hiram H. López +3

cs.IT2018

Communication efficient and strongly secure secret sharing schemes based on algebraic geometry codes

Umberto Martínez-Peñas

cs.IT2022

Multilayer crisscross error and erasure correction

Umberto Martínez-Peñas

cs.IT2017

Universal secure rank-metric coding schemes with optimal communication overheads

Umberto Martínez-Peñas

cs.IT2015

Rank error-correcting pairs

Umberto Martínez-Peñas, Ruud Pellikaan

cs.IT2016

On the similarities between generalized rank and Hamming weights and their applications to network coding

Umberto Martínez-Peñas