Geodesic
Semibounded local hamiltonians for perturbations of the laplacian supported by curves with angle points in $\mathbb R^4$
Teoretičeskaâ i matematičeskaâ fizika, Tome 106 (1996) no. 2, pp. 179-199 Cet article a éte moissonné depuis la source Math-Net.Ru

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Perturbations supported by curves with angle points are studied for the Laplacian in $\mathbb R^4$ within the framework of the extension theory. Classes of the self-adjoint extensions that are local, semibounded and generate a positivity preserving semigroup are distinguished. Their connection with the local Dirichlet forms is obtained. 
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     author = {Yu. G. Shondin},
     title = {Semibounded local hamiltonians for perturbations of the laplacian supported by curves with angle points in~$\mathbb R^4$},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {179--199},
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     url = {http://geodesic.mathdoc.fr/item/TMF_1996_106_2_a0/}
}
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Yu. G. Shondin. Semibounded local hamiltonians for perturbations of the laplacian supported by curves with angle points in $\mathbb R^4$. Teoretičeskaâ i matematičeskaâ fizika, Tome 106 (1996) no. 2, pp. 179-199. http://geodesic.mathdoc.fr/item/TMF_1996_106_2_a0/

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