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convergence, 212 transmission condition, 34
optimal relaxation parameter, 213 triangle inequality, 400
sorbed concentration, 12 triangulation, 56, 114
source term, 14 anisotropic, 140
space conforming, 56, 125
normed, 400 element, 114
space-time cylinder, 15 properties, 114
bottom, 15 re¬nement, 76
lateral surface, 15 truncation error, 28
spectral norm, 397 two-grid iteration, 242
spectral radius, 395 algorithm, 242
spectrum, 395
split preconditioning, 228 underrelaxation, 209
SSOR method, 211 unsaturated, 10
stability function, 316 upscaling, 6
stability properties, 36 upwind discretization, 372
stable, 28 upwinding
static condensation, 128 exponential, 269
stationary point, 217 full, 269
step size, 21
sti¬ness matrix, 62, 296, 298 V-cycle, 244
element entries, 76 V -elliptic, 69
streamline upwind Petrov“Galerkin variation of constants, 286
method, 375 variational equation, 49
streamline-di¬usion method, 377 equivalence to minimization
streamline-di¬usion norm, 378 problem, 50
424 Index

solvability, 93 regular, 262
viscosity, 8
volume averaging, 6 W-cycle, 244
volumetric ¬‚uid velocity, 7 water pressure, 8
volumetric water content, 11 weight, 30, 80
Voronoi diagram, 262 well-posedness, 16
Voronoi polygon, 262 Wigner“Seitz cell, 262
Voronoi tesselation, 178
Z 2 “estimate, 192
Voronoi vertex, 262
degenerate, 262 zero of function f , 342

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