Geodesic
Spectral problem for the curl of a vector field in a nonorthogonal coordinate system
Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory, Differential equations. Mathematical physics, Tome 140 (2017), pp. 50-67.

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We discuss computational aspects of the spectral problem for the curl of a vector field that allow one to find tangent fields to coordinate surfaces of a given curvilinear coordinate system.
Keywords: force-free field, curl, spectral problem, local nonorthogonal coordinate system, tangent field, coordinate surface.
Mots-clés : transition matrix, biorthogonal basis 
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     author = {G. G. Islamov},
     title = {Spectral problem for the curl of a vector field in a nonorthogonal coordinate system},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {50--67},
     publisher = {mathdoc},
     volume = {140},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2017_140_a4/}
}
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G. G. Islamov. Spectral problem for the curl of a vector field in a nonorthogonal coordinate system. Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory, Differential equations. Mathematical physics, Tome 140 (2017), pp. 50-67. http://geodesic.mathdoc.fr/item/INTO_2017_140_a4/