Titlebook: Numerical Treatment of Free Boundary Value Problems / Numerische Behandlung freier Randwertaufgaben; Workshop on Numerica J. Albrecht,L. Co

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John Crankonal investment required to provoke change. Given the practical value of such information to teachers and learners, we advocate increased attention to the importance of time in assessment, not as a discrete occasion for glimpsing learner abilities but as unfolding across activities.

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Flame Fronts, Crystal Growth and Weak Solutions,servative form is described. A method of numerical solution based on the enthalpy method and weak solution techniques is given, and the results of some numerical calculations are presented. In the last section a crystal growth problem, in which the movement of both the solidification front and the a

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Free Boundary Problems in China,, the continuous dependence, the regularity, the asymptotic behavior as . → ∞, the numerical analysis and the ordering principle of the solution of the two-phase Stefan problem are talked, but almost all of these results were obtained in the sixties. Finally, we say a few words about the stationary

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Some Moving Boundary Problems in Electrochemical Machining,oposed for the removal by electrochemical machining of irregularities on the surface of the anode. These irregularities are described by Fourier series with time-dependent coefficients. Differential equations are derived for these coefficients in order that the variation in time of the height of the