@article{featurelearninginwideneuralnetworksunder, title = {Feature Learning in Wide Neural Networks under $μ$P: Identifiability and Sparse-Dictionary Decomposition of the Mean-Field Limit}, author = {Akmal Xodarev}, year = {2026}, eprint = {2605.24710}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2605.24710}, }