@article{stephen2026, title={Structural Identifiability and Gradient Bounds for Hybrid-Activation Learning of Fractional HIV Dynamics}, author={Okeke Ikenna Stephen}, year={2026}, journal={Ktrend – Nigerian Journal of Mathematical and Computational Sciences}, volume={2}, number={1}, pages={1-12}, doi={10.5281/zenodo.23127321}, url={https://doi.org/10.5281/zenodo.23127321} }