coarse space
A Discontinuous Galerkin like Coarse Space correction for Domain Decomposition Methods with continuous local spaces: the DCS-DGLC Algorithm
... the coarse space should be discontinuous at the interfaces between ...Discontinuous Coarse Spaces (DCS) were ...discontinuous coarse correction for the Optimized Schwarz Method (OSM) in ...
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A coarse space for heterogeneous Helmholtz problems based on the Dirichlet-to-Neumann operator
... optimal coarse space functions on the wave ...coarse space. We conclude three guidelines for the design of the coarse space W : ...the coarse space functions should ...
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Addendum to "A coarse space for heterogeneous Helmholtz problems based on the Dirichlet-to-Neumann operator"' [J. Comput. Appl. Math. 271 (2014) 83–99]
... Lions, Tour 15-25 Bureau 319, 4 place Jussieu, 75005 Paris, France Abstract This communication gives a corrigendum to the paper “A coarse space for heterogeneous Helmholtz problems based[r] ...
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Achieving robustness through coarse space enrichment in the two level Schwarz framework
... Fig. 1 Left: coefficient distribution (pink or dark is high conductivity) – Middle: Metis par- tition of the 200 × 200 mesh into 100 subdomains – Right: We plot the condition number with respect to the coarse ...
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A two-level domain-decomposition preconditioner for the time-harmonic Maxwell's equations
... The idea of preconditioning discretisations of the Helmholtz equation with discretisations of the corresponding problem with absorption was introduced in Erlangga et al. [2004]. In Graham et al. [2017a], a two-level ...
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Two-level preconditioners for the Helmholtz equation
... is based on the relative residual. We consider a regular decomposition into subdomains (squares/cubes), the overlap for each subdomain is of size O(2h) in all directions and the two-level preconditioner (4) is used in ...
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Varieties of coarse spaces
... a coarse space can be considered as an asymptotic counterpart of a uniform topological space and could be defined in terms of balls, see [6], ...a coarse space is called a ...
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Numerical assessment of two-level domain decomposition preconditioners for incompressible Stokes and elasticity equations
... preconditioners coarse spaces containing only zero energy modes seem to be enough for two and three dimensional ...the coarse space is sufficiently ...
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Two-level domain decomposition methods for highly heterogeneous Darcy equations. Connections with multiscale methods
... spectral coarse space in- troduced in [23] and later analyzed in ...larger coarse space does not bring much improvement while a smaller one has a poor perfor- mance, see § ...one coarse ...
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Abstract robust coarse spaces for systems of PDEs via generalized eigenproblems in the overlaps
... a coarse space construction based on Generalized Eigen- problems in the Overlap (which we will refer to as the GenEO coarse ...The coarse space construction applies to systems of PDEs ...
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Evolution of the dark matter phase space density distributions of ΛCDM haloes
... To better understand the evolution of f with redshift we plot his- tograms of log (f ) at each redshift in Fig. 6 (thick solid histograms). The thin red curves at each redshift represent the best-fitting Gaussians to the ...
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Reduction of radiation biases by incorporating the missing cloud variability by means of downscaling techniques: a study using the 3-D MoCaRT model
... Two main effects contribute to the differences in the fluxes. First, cloud variability is described at different resolutions and, second, horizontal photon transport is allowed in one case and forbidden in the other. The ...
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Improvement of Strength of Concrete with Partial Replacement Of Course Aggregate With Coconut Shell and Coir Fibres
... Coconut shell and coir fibres are the natural materials which is abundantly available in tropical regions. Wastes generated by industrial and agricultural processes have created disposal and management problems which ...
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Diversification and Coarse-Grained Metaheuristics
... Diversification (one of the crucial components in recent metaheuristics) is the exploration of the regions that have not been investigated well i.e., enabling the search procedure to investigate unexplored areas which ...
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Numerical Model Parameters for Simulation of Contaminant Transport
... Numerical models use approximate numerical solutions to the governing equations of groundwater flow and/or contaminant transport. Parameter values are specified at certain points in space and time, and provide for ...
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Numerical Model Parameters for Simulation of Contaminant Transport
... Numerical models use approximate numerical solutions to the governing equations of groundwater flow and/or contaminant transport. Parameter values are specified at certain points in space and time, and provide for ...
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Evaluation of non-conventional concrete by Self-Curing method
... Concrete is the most consumed material. Production of concrete relies to a large extend on the availability of cement, sand and coarse aggregate, the cost of which have astronomically over the past few years. The ...
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Normal functors in the coarse category
... Abstract. We define the canonical coarse structure on the spaces of the form F X , where F is a finitary normal functor of finite degree and show that every finitary (i.e., preserving the class of finite spaces) ...
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An Experimental Study on Partial Replacement of Natural Coarse Aggregate With Fly Ash Coarse Aggregate (FACA)
... natural coarse aggregate which is used to prepare concrete where once easily available in our country, but now there is high demand in materials which has gone to a high ...of coarse aggregate with fly ash ...
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Study on Behavior of Glass Powder and Recycled Coarse Aggregate as a Partial Replacement of Fine and Coarse Aggregate
... As coarse aggregates are non- renewable resources, scarcities of these materials have been increased in recent ...Recycled coarse aggregates (RCA) can be used as coarse aggregate partially in ...
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