Distributional fractional powers of the Laplacean. Riesz potentials
Distributional fractional powers of the Laplacean. Riesz potentials
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发表时间:
1999
影响因子:
0.8
通讯作者:
C. Martínez;Miguel Sanzi;F. Periago
中科院分区:
文献类型:
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作者:
C. Martínez;Miguel Sanzi;F. Periago
Fordieren treasonsitisveryusefultohaveatone'sdisposaladuality formulaforthefractionalpowersoftheLaplacean,namely,(( ) u; )=(u;( ) ); 2 C,for belongingtoasuitablefunctionspaceandutoitstopologicaldual. Unfortu- nately,thisformulamakesnosenseintheclassicalspacesofdistributions. Forthisreason weintroduceanewspaceofdistributionswheretheaboveformulacanbeestablished. Fi- nally,weapplythisdistributionalpointofviewonthefractionalpowersoftheLaplacean toobtainsomepropertiesoftheRieszpotentialsinawideclassofspaceswhichcontains theL p -spaces.