Torsional Rigidity, Isospectrality and Quantum Graphs
arXiv:1607.05752 · doi:10.1088/1751-8121/50/3/035201
Abstract
We study torsional rigidity for graph and quantum graph analogs of well-known pairs of isospectral non-isometric planar domains. We prove that such isospectral pairs are distinguished by torsional rigidity.
15 pages, 5 figures