Geodesic
On splitting schemes in the mixed finite element method
Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 15 (2012) no. 2, pp. 183-189.

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Within the research into some geothermal modes, a 3D heat transfer process was described by the first order system of differential equations (in terms of “temperature–heat-flow”). This system was solved by an explicit scheme for the mixed finite element spatial approximations based on the Raviart–Thomas degrees of freedom. In this paper, a few algorithms based on the splitting technique for the vector heat-flow equation are proposed. Some comparison results of accuracy of the algorithms proposed are presented. 
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K. V. Voronin; Yu. M. Laevsky. On splitting schemes in the mixed finite element method. Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 15 (2012) no. 2, pp. 183-189. http://geodesic.mathdoc.fr/item/SJVM_2012_15_2_a7/

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