Generalized second-order partial derivatives of 1/ r
نویسندگان
چکیده
منابع مشابه
Generalized second-order partial derivatives of 1/r
The generalized second-order partial derivatives of 1/r , where r is the radial distance in three dimensions (3D), are obtained using a result of the potential theory of classical analysis. Some non-spherical-regularization alternatives to the standard spherical-regularization expression for the derivatives are derived. The utility of a spheroidal-regularization expression is illustrated on an ...
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ژورنال
عنوان ژورنال: European Journal of Physics
سال: 2011
ISSN: 0143-0807,1361-6404
DOI: 10.1088/0143-0807/32/2/003