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ABSOLUTE CONTINUITY FOR UNBOUNDED POSITIVE SELF-ADJOINT OPERATORS

open access: yesABSOLUTE CONTINUITY FOR UNBOUNDED POSITIVE SELF-ADJOINT OPERATORS
The notion of absolute continuity for positive operators was studied by T. Ando, where parallel sums for such operators played an important role. On the other hand, a theory for parallel sums for densely defined positive self-adjoint operators (or more generally positive forms) was developed in our previous work.
openaire  

Continuous energy adjoint transport for photons in PHITS

open access: yesContinuous energy adjoint transport for photons in PHITS
Adjoint Monte Carlo can be an efficient algorithm for solving photon transport problems where the size of the tally is relatively small compared to the source. Such problems are typical in environmental radioactivity calculations, where natural or fallout radionuclides spread over a large area contribute to the air dose rate at a particular location ...
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A Weyl Matrix Perspective on Unbounded Non-Self-Adjoint Jacobi Matrices. [PDF]

open access: yesComplex Anal Oper Theory
Eichinger B, Lukić M, Young G.
europepmc   +1 more source

Development and validation of continuous energy adjoint-weighted calculations

open access: yes, 2015
L'un des enjeux actuel de la neutronique concerne la propagation rigoureuse des incertitudes d'entrée (e.g. données nucléaires, tolérances de fabrications, etc.) aux résultats finaux calculés par les codes (e.g. keff, taux de réaction, etc.). Pour propager les incertitudes, il est de coutume de faire l'hypothèse de petites variations autour d'une ...
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