RT Journal Article T1 A note on one-sided extrapolation of compactness and applications A1 Martín-Reyes, Francisco Javier A1 Rivera Ríos, Israel P. K1 Integrales singulares K1 Análisis numérico AB In this paper one-sided counterparts of compactness extrapolation results of Hytönen and Lappas (2021) are provided. As a consequence, compactness results for one-sided singular integrals, commutators of one-sided fractional integrals and a certain class of Lr-Hörmander operators are given. The results for commutators of Lr-Hörmander operators seem new even in the classical setting. PB IMPAN YR 2025 FD 2025-08-08 LK https://hdl.handle.net/10630/40111 UL https://hdl.handle.net/10630/40111 LA eng NO Martín-Reyes, Francisco J.; Rivera-Ríos, Israel P. A note on one-sided extrapolation of compactness and applications. Studia Math. 284 (2025), no. 1, 39–68. NO Política de acceso abierto tomada de: https://www.impan.pl/en/publishing-house/journals-and-series/studia-mathematica/information-for-authors. The Online First version of the article will be sent to the author and published on the journal's web site before the article is assigned to an issue. This version will be freely downloadable for everybody. The author is allowed to post the “Online First” version to his/her personal web site and to any other archives. NO Ministerio de Ciencia e Innovación NO Junta de Andalucía DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026