. . . . . "Fourier multiplier operators" . . "Multiplier operators in Fourier analysis." . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJlM78d80R+gFMoQB1IG3f7AbqqGOCIv4HmZd1cx1KgEWMUUpPsojFNvx84fC/TltcJ8F8JafnbhDXW2HM2MhdK4yC04ROEV1vIgSzjDicHfiqXvMqdPuMyQp4mmCEY7mUoeEW10mWZqjk+S9TnmiAQbFGcpExP8aosr2aTR7CSQIDAQAB" . "WwxjDP9/3LaHTV72qxRf558BpznnzSPb3D2rYp5XGGav2N/qxLVzvqXCraAK4gPwxHnBlWlGRy+ko5oVVVhl9NpCPce/CF7GLS+6bzWOswEd8BoyI+7XmRzU8p0v5keC21CUkjUWx+/H87HHjmwQPiDctRz/HG1Z/FpxD8ueyeY=" . . "2021-02-12T13:42:15.959+02:00"^^ . . . . . .