Numerical Modelling in Geosciences
... relatively small amount of operations, iterative solvers are commonly used for solving large (3D) problems. However, the accuracy of the solution may be low and convergence may be slow because of large differences in matrix coefficients (high condition number) and residuals at wavelength longer than ...
... relatively small amount of operations, iterative solvers are commonly used for solving large (3D) problems. However, the accuracy of the solution may be low and convergence may be slow because of large differences in matrix coefficients (high condition number) and residuals at wavelength longer than ...
F9b Straight Line Graphs
... plot graphs of equations that correspond to straight-line graphs in the coordinate plane; … A10 identify and interpret gradients and intercepts of linear functions graphically and algebraically A12 Recognise, sketch and interpret graphs of linear functions … A14 plot and interpret … graphs of non-st ...
... plot graphs of equations that correspond to straight-line graphs in the coordinate plane; … A10 identify and interpret gradients and intercepts of linear functions graphically and algebraically A12 Recognise, sketch and interpret graphs of linear functions … A14 plot and interpret … graphs of non-st ...
BKL singularity
A BKL (Belinsky–Khalatnikov–Lifshitz) singularity is a model of the dynamic evolution of the Universe near the initial singularity, described by an anisotropic, homogeneous, chaotic solution to Einstein's field equations of gravitation. According to this model, the Universe is oscillating (expanding and contracting) around a singular point (singularity) in which time and space become equal to zero. This singularity is physically real in the sense that it is a necessary property of the solution, and will appear also in the exact solution of those equations. The singularity is not artificially created by the assumptions and simplifications made by the other well-known special solutions such as the Friedmann–Lemaître–Robertson–Walker, quasi-isotropic, and Kasner solutions.The Mixmaster universe is a solution to general relativity that exhibits properties similar to those discussed by BKL.