St. Petersburg Mathematical Journal, 10. cilt,579-1070. sayfalarAmerican Mathematical Society, 1999 |
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53 sonuçtan 1-3 arası sonuçlar
Sayfa 731
... selfadjoint Friedrichs model , Ark . Mat . 25 ( 1987 ) , no . 1 , 115–140 . 4. Ya . V. Mikityuk , On the singular spectrum of selfadjoint operators , Dokl . Akad . Nauk SSSR 303 ( 1988 ) , no . 1 , 33-36 ; English transl . , Soviet Math ...
... selfadjoint Friedrichs model , Ark . Mat . 25 ( 1987 ) , no . 1 , 115–140 . 4. Ya . V. Mikityuk , On the singular spectrum of selfadjoint operators , Dokl . Akad . Nauk SSSR 303 ( 1988 ) , no . 1 , 33-36 ; English transl . , Soviet Math ...
Sayfa 744
... selfadjoint extension A + of A is minimal if A + is reduced by no nonzero subspace of H ' . A selfadjoint extension A + of A is minimal if and only if the operator A ' induced by A + in H ' is completely nonselfadjoint . Let 5+ = √ ( U ...
... selfadjoint extension A + of A is minimal if A + is reduced by no nonzero subspace of H ' . A selfadjoint extension A + of A is minimal if and only if the operator A ' induced by A + in H ' is completely nonselfadjoint . Let 5+ = √ ( U ...
Sayfa 834
... selfadjoint rank one perturbations of a selfadjoint operator are pure point if and only if the spectrum of the initial operator is countable ( see Corollary 4.4 ) . By the Weyl - von Neumann theorem , " rank one " in the above statement ...
... selfadjoint rank one perturbations of a selfadjoint operator are pure point if and only if the spectrum of the initial operator is countable ( see Corollary 4.4 ) . By the Weyl - von Neumann theorem , " rank one " in the above statement ...
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American Mathematical Society analytic assume assumptions B₁ Banach algebra Beurling-Sobolev algebra boundary c₁ compact conformal mapping construct continuous convergence Corollary corresponding defined definition denote domain embedding English transl equation equivalent esk₁ estimate exists finite formula Fourier geodesic Hence Hilbert space homeomorphic homotopy implies inequality integral interpolation interval intrinsic metric inverse IP(Z kernel Lemma linear manifold mapping class groups Math Mathematics Subject Classification metric metric spaces mult N₁ nonselfadjoint norm obtain operator-valued function Petersburg polyhedron polynomial problem Proposition proved pure point r.i. space rank one perturbations relation respect scalar selfadjoint selfadjoint operator sequence singular spectrum solution spectral function spline subgroup Subsection subspace sufficiently symmetric operator theory unitary unitary operator upper bounded curvature vector field whence zero