Geodesic
Spaces of generalised smoothness in summability problems for $\Phi$-means of spectral decomposition
Eurasian mathematical journal, Tome 5 (2014) no. 1, pp. 61-81 
T. G. Ayele; M. L. Goldman. Spaces of generalised smoothness in summability problems for $\Phi$-means of spectral decomposition. Eurasian mathematical journal, Tome 5 (2014) no. 1, pp. 61-81. http://geodesic.mathdoc.fr/item/EMJ_2014_5_1_a1/
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Voir la notice de l'article provenant de la source Math-Net.Ru

We establish conditions for localization of generalised Riesz means of spectral decomposition by system of fundamental functions of Laplace operator in terms of belongingness of the decomposing function to the spaces of generalised smoothness.

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[2] M. L. Goldman, Investigation of spaces of differentiable functions of several variables with generalised smoothness, Doctoral Dissertation, Steklov Math. Inst. Acad. Sci. USSR, M., 1987 (in Russian)

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