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dc.contributor.author | Chiba, Hayato | en |
dc.contributor.alternative | 千葉, 逸人 | ja |
dc.date.accessioned | 2025-04-08T05:41:27Z | - |
dc.date.available | 2025-04-08T05:41:27Z | - |
dc.date.issued | 2024-07 | - |
dc.identifier.uri | http://hdl.handle.net/2433/293099 | - |
dc.description.abstract | A spectral theory of linear operators based on a Gelfand triplet (rigged Hilbert space) is developed under the assumptions that a linear operator 𝑇 on a Hilbert space 𝐻 is a perturbation of a self-adjoint operator, and the spectral measure of the self-adjoint operator has an analytic continuation near the real axis. It is shown that for a suitable dense subspace 𝑋 of 𝐻 and its dual space 𝑋¹, for any 𝜙 ∈ 𝑋, the resolvent (λ − 𝑇)⁻¹𝜙 of the operator 𝑇 has an analytic continuation from the lower half plane to the upper half plane as an 𝑋¹-valued holomorphic function even when 𝑇 has a continuous spectrum on 𝐑. The Gelfand triplet consists of three topological vector spaces 𝑋 ⊂ 𝐻 ⊂ 𝑋¹. Basic tools of the usual spectral theory, such as spectra, resolvents and Riesz projections are extended to those defined on a Gelfand triplet. They prove to have the same properties as those of the usual spectral theory. The results are applied to estimate exponential decays of the semigroups of linear operators and bifurcations of nonlinear dynamical systems. In particular, a conjecture on a bifurcation of the Kuramoto model (Kuramoto conjecture) will be solved. | en |
dc.language.iso | eng | - |
dc.publisher | Research Institute for Mathematical Sciences, Kyoto University | en |
dc.publisher.alternative | 京都大学数理解析研究所 | ja |
dc.rights | © 2024 by the Research Institute for Mathematical Sciences, an International Joint Usage/Research Center located in Kyoto University. All rights reserved. Printed in Japan. | en |
dc.subject | 47A10 | en |
dc.subject.ndc | 410 | - |
dc.title | The generalized spectral theory and its application to the Kuramoto conjecture (Recent developments in mathematics of integrable systems) | en |
dc.type | departmental bulletin paper | - |
dc.type.niitype | Departmental Bulletin Paper | - |
dc.identifier.ncid | AA12196120 | - |
dc.identifier.jtitle | 数理解析研究所講究録別冊 | ja |
dc.identifier.volume | B96 | - |
dc.identifier.spage | 71 | - |
dc.identifier.epage | 99 | - |
dc.textversion | publisher | - |
dc.sortkey | 06 | - |
dc.address | Advanced Institute for Materials Research, Tohoku University | en |
dcterms.accessRights | open access | - |
dc.identifier.pissn | 1881-6193 | - |
dc.identifier.jtitle-alternative | RIMS Kôkyûroku Bessatsu | en |
出現コレクション: | B96 Recent developments in mathematics of integrable systems |

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