3 papers
math.FA2026
Sampling and Density Theorems for the Fractional Opdam-Cherednik Transform
Riya Ghosh, Anirudha Poria
In this paper, we establish sampling and density results for the fractional Opdam-Cherednik transform. Using the Sturm-Liouville structure of Jacobi functions, we construct a Riesz…
math.FA2026
Gabor Frames for a Rational Window with Symmetric Poles
Riya Ghosh
We investigate the Gabor frame problem for a rational window This window falls outside the classes covered by existing frame set characterizatio…
cs.IT2025
Signal Prediction by Derivative Samples from the Past via Perfect Reconstruction
Sreya T, Riya Ghosh, A. Antony Selvan
This paper investigates signal prediction through the perfect reconstruction of signals from shift-invariant spaces using nonuniform samples of both the signal and its derivatives.…