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    <title>Intrinsic ultracontractivity of Schrödinger semigroups in L2 (Rn)</title>
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    <namePart>Takáč, Peter</namePart>
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    <namePart>Hundertmark, Dirk</namePart>
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  <abstract type="Summary">A possible intrinsic ultracontractivity of the magnetic Schrödinger semigroups was investigated. Usually, Rosen inequalities are essential for intrinsic ultracontractivity but hard to find since a specific asymptotical behaviour of the ground state is required. However, in the magnetic case operators of the Schrödinger semigroup are no longer positivity improving. This causes a variety of problems including the use of Logarithmic Sobolev inequalities. Using diamagnetic inequalities quasi intrinsic ultracontractivity was shown in the magnetic case.&lt;eng&gt;</abstract>
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  <note type="statement of responsibility">vorgelegt von Christoph Schwerdt</note>
  <note>GutachterInnen: Peter Takáč (Universität Rostock) ; Dirk Hundertmark (Karlsruher Institut für Technologie (KIT))</note>
  <note type="thesis">Dissertation Universität Rostock 2025</note>
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      <title>Intrinsic ultracontractivity of Schrödinger semigroups in L2 (Rn)</title>
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  <identifier type="urn">urn:nbn:de:gbv:28-rosdok_id00005172-6</identifier>
  <identifier type="doi">10.18453/rosdok_id00005172</identifier>
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