@misc{marinov-veselinov-2026solvabilitymeromorphicequationselementary,
      title={Extremal densities for forbidden configurations in $S$-smooth numbers}, 
      author={Nikola Veselinov},
      year={2026},
      eprint={2604.15515},
      archivePrefix={arXiv},
      primaryClass={math.NT},
      url={https://arxiv.org/abs/2604.15515}, 
}