2 papers
math.CO2026
Characterization of Trees with Maximum Security
Alex S. A. Alochukwu, Audace A. V. Dossou-Olory, Fadekemi J. Osaye +5
The rank (also known as protection number or leaf-height) of a vertex in a rooted tree is the minimum distance between the vertex and any of its leaf descendants. We consider the s…
q-fin.MF2024
Dynamic graph neural networks for enhanced volatility prediction in financial markets
Pulikandala Nithish Kumar, Nneka Umeorah, Alex Alochukwu
Volatility forecasting is essential for risk management and decision-making in financial markets. Traditional models like Generalized Autoregressive Conditional Heteroskedasticity…