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Showing 1 to 1 of 1 for “"discrete Witten complex"”.
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Semiclassical spectral analysis of discrete Witten Laplacians
A discrete analogue of the Witten Laplacian on the n-dimensional integer lattice is considered. After rescaling of the operator and the lattice size we analyze the tunnel effect between different wells, providing sharp asymptotics of the low-lying spectrum. Our proof, inspired by work of B. …