Browsing Matematisk institutt by Title
Now showing items 2067-2086 of 3782
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(Research report / Forskningsrapport, 1998)
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(Research report / Forskningsrapport, 2002)It is well known that a wide range of impulse control problems are continuous, but not differentiable, with respect to intervention cost as it approaches zero. We show a similar non-C1 result, assuming that the problem and ...
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(Doctoral thesis / Doktoravhandling, 2018)A simplicial set is said to be non-singular if its non-degenerate simplices are embedded. Let sSet denote the category of simplicial sets. We prove that the full subcategory nsSet whose objects are the non-singular simplicial ...
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(Research report / Forskningsrapport, 2003)Structural frame systems may be analyzed and designed based on forces from conventional first order theory when second order effects of axial forces on displacements in the compression members of the system are negligible. ...
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(Research report / Forskningsrapport, 2003)Structural frame systems may be analyzed and designed based on forces from conventional first order theory when second order effects of axial forces on displacements in the compression members of the system are negligible. ...
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(Research report / Forskningsrapport, 1980)
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(Research report / Forskningsrapport, 1998)We show that the stable AF-algebras defined by two square primitive nonsingular incidence matrices with nonnegative integer matrix elements may be isomorphic even though no powers of the associated automorphisms of the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Non-stationary Extreme Value Analysis (NEVA) allows to determine the probability of exceedance of extreme sea states taking into account trends in the time series of data at hand. In this work, we analyse the reliability ...
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Non-Stationary Mixed-Frequency Variables in Time Series Models: A New Design ApproachRestricted Access (Master thesis / Masteroppgave, 2013)Mixed-frequency variables may encounter problems of non-guaranteed steady-state in time-variant state-space system during temporal disaggregation, forecasting or nowcasting. The instability of state-space system directly ...
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(Research report / Forskningsrapport, 1980)
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(Research report / Forskningsrapport, 1998)
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
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(Master thesis / Masteroppgave, 2014)In their paper, "Type III sigma-spectral triples and quantum statistical mechanical systems", M. Greenfield, M. Marcolli and K. Teh used the Bost-Connes system to construct a type III sigma-spectral triple where the twisting ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
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(Master thesis / Masteroppgave, 2012)In this thesis we study thwe phase space Ph(A) for an associative algebra A, with k algebraically closed (when needed we will assume k=C). The phase space has a universal property analogous to that of the module of Kähler ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2014)This paper presents a nonconforming finite element approximation of the space of symmetric tensors with square integrable divergence, on tetrahedral meshes. Used for stress approximation together with the full space of ...
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(Doctoral thesis / Doktoravhandling, 1994)The present work deals with the development of an analysis-model applicable to large scale 3D beam structures of reinforced and prestressed concrete. The model is based on the finite element method and allows for large ...
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(Research report / Forskningsrapport, 2003)
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(Master thesis / Masteroppgave, 2018)
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(Research report / Forskningsrapport, 2004)We prove a comparison principle for unbounded semicontinuous viscosity sub- and supersolutions of nonlinear degenerate parabolic integro-partial differential equations coming from applications in mathematical finance in ...