Spectre du noyau intégral \((x^2+y^2+1)^{-1}\). (French) Zbl 0438.45001


45C05 Eigenvalue problems for integral equations
47B10 Linear operators belonging to operator ideals (nuclear, \(p\)-summing, in the Schatten-von Neumann classes, etc.)
45P05 Integral operators
47Gxx Integral, integro-differential, and pseudodifferential operators
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