Projective and coarse projective integration for problems with continuous symmetries
نویسندگان
چکیده
منابع مشابه
Projective and coarse projective integration for problems with continuous symmetries
Temporal integration of equations possessing continuous symmetries (e.g. systems with translational invariance associated with traveling solutions and scale invariance associated with self-similar solutions) in a “co-evolving” frame (i.e. a frame which is co-traveling, co-collapsing or co-exploding with the evolving solution) leads to improved accuracy because of the smaller time derivative in ...
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Let $R$ be a ring and $M$ a right $R$-module with $S=End_R(M)$. A module $M$ is called semi-projective if for any epimorphism $f:Mrightarrow N$, where $N$ is a submodule of $M$, and for any homomorphism $g: Mrightarrow N$, there exists $h:Mrightarrow M$ such that $fh=g$. In this paper, we study SGQ-projective and $pi$-semi-projective modules as two generalizations of semi-projective modules. A ...
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2007
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2006.12.003