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A lower bound to the spectral threshold in curved tubes

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00110223" target="_blank" >RIV/61389005:_____/04:00110223 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389005:_____/04:00031756

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A lower bound to the spectral threshold in curved tubes

  • Original language description

    We consider the Laplacian in curved tubes of arbitrary cross-section rotating together with the Frenet frame along curves in Euclidean spaces of arbitrary dimension, subject to Dirichlet boundary conditions on the cylindrical surface and Neumann conditions at the ends of the tube. We prove that the spectral threshold of the Laplacian is estimated from below by the lowest eigenvalue of the Dirichlet Laplacian in a torus determined by the geometry of the tube.

  • Czech name

    Dolní hranice spektrálního prahu v zakřivených trubicích

  • Czech description

    Uvažujeme Laplacian v zakřivených trubicích s libovolným průřezem rotujícím spolu s Frenetovou referenční soustavou podél křivky v Euklidových prostorech libovolné dimenze, s Dirichletovou okrajovou podmínkou na válcovém povrchu a Neumannovými podmínkamina koncích trubice. Dokazujeme, že spektrální práh Laplacianu je odhadnut zdola nejnižší vlastní hodnotou Dirichletova Laplacianu v toru učeném geometrií trubice.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BE - Theoretical physics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/IAA1048101" target="_blank" >IAA1048101: Quantum graphs and related systems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES

  • ISSN

    1364-5021

  • e-ISSN

  • Volume of the periodical

    460

  • Issue of the periodical within the volume

    2052

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    21

  • Pages from-to

    3457-3467

  • UT code for WoS article

  • EID of the result in the Scopus database