@article{fastdifferentiableandsparsetopkaconvex,
  title = {Fast, Differentiable and Sparse Top-k: a Convex Analysis Perspective},
  author = {Michael E. Sander and Joan Puigcerver and Josip Djolonga and Gabriel Peyré and Mathieu Blondel},
  year = {2023},
  eprint = {2302.01425},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2302.01425v3},
}