10-166 Cesar R. de Oliveira
Quantum singular operator limits of thin Dirichlet tubes via $\Gamma$-convergence (546K, pdf) Oct 11, 10
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Abstract. The $\Gamma$-convergence of lower bounded quadratic forms is used to study the singular operator limit of thin tubes (i.e., the vanishing of the cross section diameter) of the Laplace operator with Dirichlet boundary conditions; a procedure to obtain the effective Schr\"odinger operator (in different subspaces) is proposed, generalizing recent results in case of compact tubes. Finally, after scaling curvature and torsion the limit of a broken line is briefly investigated.

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