BBM equation Computer science Computing & information technology Fourier amalgam spaces Fourier–Lebesgue spaces Gevrey regularity Rio Papaloapan Bridge Segal algebra Wiener amalgam space Wiener amalgam spaces admissibility condition boundary values of analytic functions bounded measures bounded uniform partition of unity convolution covriance matrix damage identification extended Gevrey regularity homogeneous Banach spaces ill-posedness integrated group representation inversion formula locally compact groups modulation spaces p-evolution equations polar duality pseudodifferential operators reconstruction problem semi-discrete wavelet transform sharp Gårding inequality