搜索结果: 31-45 共查到“理学 Reduced”相关记录99条 . 查询时间(0.281 秒)
Reduction of Multidimensional Wave Equations to Two-Dimensional Equations: Investigation of Possible Reduced Equations
Mathematical Physics (math-ph) Analysis of PDEs (math.AP) Exactly Solvable and Integrable Systems (nlin.SI)
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2010/11/11
We study possible Lie and non-classical reductions of multidimensional wave equations and the special classes of possible reduced equations - their symmetries and equivalence classes. Such investigati...
Time-dependent occupation numbers in reduced-density-matrix functional theory: Correlation-induced oscillations
Time-dependent occupation numbers reduced-density-matrix functional theory
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2010/11/18
We prove that if the two-body terms in the equation of motion for the one-body reduced density
matrix are approximated at each instant of time from ground-state functionals, the eigenvalues of the on...
Reduced basis method for source mask optimization
Reduced basis method source mask optimization
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2010/11/16
Image modeling and simulation are critical to extending the limits of leading edge lithography technologies used for IC making. Simultaneous source mask optimization (SMO) has become an important obj...
Reduced basis method for computational lithography
Reduced basis method computational lithography
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2010/11/16
A bottleneck for computational lithography and optical metrology are long computational times for near field simulations. For design, optimization, and inverse scatterometry usually the same basic la...
Particle reacceleration by compressible turbulence in galaxy clusters: effects of reduced mean free path
acceleration of particles - turbulence - radiation mechanisms non{thermal - galaxies clusters general radio continuum general - X{rays general
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2010/11/11
Direct evidence for in situ particle acceleration mechanisms in the inter-galactic-medium (IGM) is provided by the di use Mpc{scale synchrotron emissions observed from galaxy clusters.
On the weighted forward reduced Entropy of Ricci flow
the weighted forward reduced Entropy Ricci flow
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2010/11/9
In this paper, we first introduce the weighted forward reduced volume of Ricci flow. The weighted forward reduced volume, which related to expanders of Ricci flow, is well-defined on noncompact manif...
Symmetries of Self-Dual Yang-Mills Equations Dimensionally Reduced From (2,2) Space-time
Self-Dual Yang-Mills Equations Space-time
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2010/12/22
We construct infinite-dimensional symmetries of the two dimensional equation which results from the dimensional reduction of the self-duality condition in (2, 2) signature space-time. These are symme...
Reduced Gröbner Bases of Certain Toric Varieties; A New Short Proof
Reduced Grö bner Bases Certain Toric Varieties New Short Proof
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2010/11/30
Let K be a field and let m0, ...,mn be an almost arithmetic sequence of positive integers. Let C be a toric variety in the affine (n + 1)-space,defined parametrically by x0 = tm0 , . . . , xn = tmn. I...
Holonomy reduced dynamics of triatomic molecular systems
Holonomy reduced dynamics triatomic molecular systems
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2010/11/29
Whereas it is easy to reduce the translational symmetry of a molecular system by using, e.g., Jacobi coordinates the situation is much more involved for the rotational symmetry.
Momentum conservation in dissipationless reduced-fluid dynamics
Momentum conservation dissipationless reduced-fluid dynamics
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2010/12/15
The momentum conservation law for general dissipationless reduced-fluid (e.g., gyrofluid) models is derived by Noether method from a variational principle. The reduced-fluid momentum density and the r...
Reduced Complexity Decoding for Bit-Interleaved Coded Multiple Beamforming with Constellation Precoding
Complexity Decoding Bit-Interleaved Coded Multiple Beamforming Constellation Precoding
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2010/12/8
Multiple beamforming is realized by singular value decomposition of the channel matrix which is assumed to be perfectly known to the transmitter as well as the receiver. Bit-Interleaved Coded Multiple...
Reduced, tame and exotic fusion systems
Classifying space p-completion finite groups fusion
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2010/11/29
We define here two new classes of saturated fusion systems, reduced fusion systems and tame fusion systems. These are motivated by our attempts to better understand and search for exotic fusion system...
On reduced Beltrami equations and linear families of quasiregular mappings
Quasiregular mappings linear families elliptic PDEs
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2010/12/6
We give a positive answer to a conjecture of K. Astala, T. Iwaniec, and G.Martin [4] on reduced Beltrami equations. Moreover, we use it to study differential expressions related to two-dimensional lin...
Reduced decompositions and commutation classes
Reduced decompositions commutation classes
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2010/11/30
We study three aspects of commutation classes of reduced decompo-sitions: the number of commutation classes, the structures of their corre-sponding graphs, and the enumeration of subnetworks, a concep...
On the relationship between parametric two-electron reduced-density-matrix methods and the coupled electron pair approximation
parametric two-electron reduced-density-matrix methods coupled electron pair approximation
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2010/10/21
Parametric two-electron reduced-density-matrix (p-2RDM) methods have enjoyed much success
in recent years; the methods have been shown to exhibit accuracies greater than coupled cluster
with single ...