@article{
arroyo2026a,
title={A Survey on Over-smoothing and Over-squashing: Unified Propagation Perspectives on Graph Neural Networks and Transformers},
author={Alvaro Arroyo and Federico Barbero and Hugh Blayney and Michael M. Bronstein and Xiaowen Dong and Pietro Lio and Razvan Pascanu and Pierre Vandergheynst},
journal={Transactions on Machine Learning Research},
issn={2835-8856},
year={2026},
url={https://openreview.net/forum?id=H9zhC5pVnH},
note={}
}