Results 11 to 20 of about 337,560 (132)

On the adjoint of a symmetric operator [PDF]

open access: yes, 2007
In general it is a non-trivial task to determine the adjoint S* of an unbounded symmetric operator S in a Hilbert or Krein space. We propose a method to specify S* explicitly which makes use of two boundary mappings that satisfy an abstract Green's ...
Meda S.   +47 more
core   +4 more sources

Modelling uncertainty for flash floods in coastal plains using adjoint methods [PDF]

open access: yes, 2007
This paper shows the application of adjoint sensitivity analysis to flash flood wave propagation in a river channel. The adjoint sensitivity analysis is used to assess flood hazard in a coastal area caused by river discharge.
Copeland, Graham J.M., Elhanafy, Hossam
core   +3 more sources

Triple Operators of Order n on a Hilbert Space

open access: yesTikrit Journal of Pure Science, 2018
In this paper, we introduce a new class of operators on a complex Hilbert space  which is called triple operators of order n. An operator  is called triple operator of order n if  where  is the adjoint of the operator .
Elaf Sabah Abdulwahid Rijab
doaj   +1 more source

Ding–Iohara–Miki symmetry of network matrix models

open access: yesPhysics Letters B, 2016
Ward identities in the most general “network matrix model” from [1] can be described in terms of the Ding–Iohara–Miki algebras (DIM). This confirms an expectation that such algebras and their various limits/reductions are the relevant substitutes ...
A. Mironov, A. Morozov, Y. Zenkevich
doaj   +1 more source

Triple F Utvecklingsplan : Version 1

open access: yes, 2021
Triple F (Fossil Free Freight) är ett nationellt forsknings- och innovationsprogram med syfte att utveckla kunskap som kan bidra till att minska godstransporternas växthusgasutsläpp i Sverige. Programmet finansieras av Trafikverket.
Blidberg, Nicklas   +2 more
core   +1 more source

Mitigation of flash floods in arid regions using adjoint sensitivity analysis [PDF]

open access: yes, 2007
This paper presents an analysis of the sensitivities of flood wave propagation to variations in certain control variables and boundary conditions by means of the adjoint method.
Copeland, Graham J.M., Elhanafy, Hossam
core   +3 more sources

« Les marchés de la musique vivante », de l’expérience professionnelle à l’enseignement et la recherche

open access: yesTransposition, 2018
Comment enseigner la gestion de la musique ? Quel dialogue peut-on engager entre la pratique et la recherche dans ce domaine ? Et quels sont les enjeux auxquels il convient de préparer les futurs administrateurs de la musique en France, et ailleurs ...
Fanny Gribenski
doaj   +1 more source

Higher spin currents in the orthogonal coset theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
In the coset model $$(D_N^{(1)} \oplus D_N^{(1)},D_N^{(1)})$$ ( D N ( 1 ) ⊕ D N ( 1 ) , D N ( 1 ) ) at levels $$(k_1,k_2)$$ ( k 1 , k 2 ) , the higher spin 4 current that contains the quartic WZW currents contracted with a completely symmetric SO(2N ...
Changhyun Ahn
doaj   +1 more source

Integrable three-dimensional coupled nonlinear dynamical systems related with centrally extended operator Lie algebras [PDF]

open access: yesOpuscula Mathematica, 2007
A hierarchy of Lax-type flows on a dual space to the centrally extended Lie algebra of integral-differential operators with matrix-valued coefficients is considered.
Oksana Ye. Hentosh   +1 more
doaj  

Premature deaths attributed to source-specific BC emissions in six urban US regions

open access: yesEnvironmental Research Letters, 2015
Recent studies have shown that exposure to particulate black carbon (BC) has significant adverse health effects and may be more detrimental to human health than exposure to PM _2.5 as a whole.
Matthew D Turner   +16 more
doaj   +1 more source

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