Geodesic
Convolution, Fourier transform and Sobolev spaces generated by non-local Ionkin problem
Ufa mathematical journal, Tome 7 (2015) no. 4, pp. 76-87

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In this work, given a second order differential operator $\mathcal B$ subject to non-local boundary conditions, we assign Fourier transform and convolution to this problem. We study the properties of the introduced convolution and describe the class of test functions. We also introduce Sobolev spaces and obtain Plancherel identity related to operator $\mathcal B$.
Keywords: nonlocal boundary condition, test functions, Sobolev space, Plancherel identity, differential operator, Ionkin problem.
Mots-clés : convolution, Fourier transform 
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     author = {B. E. Kanguzhin and N. E. Tokmagambetov},
     title = {Convolution, {Fourier} transform and {Sobolev} spaces generated by non-local {Ionkin} problem},
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     pages = {76--87},
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     url = {http://geodesic.mathdoc.fr/item/UFA_2015_7_4_a6/}
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B. E. Kanguzhin; N. E. Tokmagambetov. Convolution, Fourier transform and Sobolev spaces generated by non-local Ionkin problem. Ufa mathematical journal, Tome 7 (2015) no. 4, pp. 76-87. http://geodesic.mathdoc.fr/item/UFA_2015_7_4_a6/