977 resultados para Space Sciences


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The end of World War II brought little relief to the lands it ravaged most. Mass wartime violence continued in the Soviet space beyond the ‘false peace’ of 1945. Historians have sought to explain this violence in terms of the ‘wartime brutalisation’ of state and citizens alike, though this approach is limited in explaining how and why violence continued after 1945. This article shifts focus from psychology to social history to argue that the disintegration of Soviet state control is central to explaining the enduring violence after 1945 and understanding its emergence as much ‘from below’ as ‘from above’.

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In this paper, a space fractional di®usion equation (SFDE) with non- homogeneous boundary conditions on a bounded domain is considered. A new matrix transfer technique (MTT) for solving the SFDE is proposed. The method is based on a matrix representation of the fractional-in-space operator and the novelty of this approach is that a standard discretisation of the operator leads to a system of linear ODEs with the matrix raised to the same fractional power. Analytic solutions of the SFDE are derived. Finally, some numerical results are given to demonstrate that the MTT is a computationally e±cient and accurate method for solving SFDE.

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