2 papers
eess.SP2026
Graph Bispectrum for Nonlinear Mode Interactions
Rahul Singh, Reza Abiri, Walter Besio
We introduce a graph bispectrum formulation for characterizing higher-order interactions in graph signals. While conventional graph spectral methods capture only second-order struc…
cond-mat.mes-hall2026
Emergent topological phase from a one-dimensional network of defects
Rahul Singh, Ritajit Kundu, Arijit Kundu +1
Symmetry-protected topological phases of matter, characterized by non-trivial band topology, are spectrally gapped and show non-trivial boundary phenomena. Here, we show that scatt…