@article{v022a006,
 author = {Bertschinger, Daniel and Hertrich, Christopher and Jungeblut, Paul and Miltzow, Tillmann and Weber, Simon},
 title = {Training Fully Connected Neural Networks is ∃ℝ-Complete},
 year = {2026},
 pages = {1--48},
 doi = {10.4086/toc.2026.v022a006},
 publisher = {Theory of Computing},
 journal = {Theory of Computing},
 volume = {22},
 number = {6},
 URL = {https://theoryofcomputing.org/articles/v022a006},
}