Author

Shankhadeep Mondal

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Preprint Oct 2026

Vanishing Moment Dilations and Applications to Balanced and Graph Frames

Given a matrix $A\in M_{k\times N}(\Bbb{F}),$ we examine finite frames $\{f_j\}_{j=1}^N$ with vanishing $A$-moments and investigate their connections with the frame dilation property. We establish several equivalent characterizations for the existence of vanishing $A-$moment dilations, including conditions involving du...

De-Guang Han, Shankhadeep Mondal, Kai Liu et al. · 0 citations

Preprint Aug 2026

Hybrid Neural-Classical Correction for Frozen Time Series Foundation Models: A Comprehensive Ablation Study on High-Frequency Stock Prediction

A comprehensive study of hybrid neural-classical correction for adapting frozen TimesFM to stock return prediction during the volatile opening trading hour, with classical methods playing a crucial complementary role.

Kasun Dewage, Suranadi De Silva, Shankhadeep Mondal · 0 citations