top
It is known that Gabor expansions do not converge unconditionally in and that cannot be characterized in terms of the magnitudes of Gabor coefficients. By using a combination of Littlewood-Paley and Gabor theory, we show that can nevertheless be characterized in terms of Gabor expansions, and that the partial sums of Gabor expansions converge in -norm.
Karlheinz Gröchenig, and Christopher Heil. "Gabor meets Littlewood-Paley: Gabor expansions in $L^{p}(ℝ^{d})$." Studia Mathematica 146.1 (2001): 15-33. <http://eudml.org/doc/284992>.
@article{KarlheinzGröchenig2001, abstract = {It is known that Gabor expansions do not converge unconditionally in $L^\{p\}$ and that $L^\{p\}$ cannot be characterized in terms of the magnitudes of Gabor coefficients. By using a combination of Littlewood-Paley and Gabor theory, we show that $L^\{p\}$ can nevertheless be characterized in terms of Gabor expansions, and that the partial sums of Gabor expansions converge in $L^\{p\}$-norm.}, author = {Karlheinz Gröchenig, Christopher Heil}, journal = {Studia Mathematica}, keywords = {frames; Gabor expansions; Gabor frames; Littlewood-Paley theory; modulation space; phase space; time-frequency analysis; Walnut representation}, language = {eng}, number = {1}, pages = {15-33}, title = {Gabor meets Littlewood-Paley: Gabor expansions in $L^\{p\}(ℝ^\{d\})$}, url = {http://eudml.org/doc/284992}, volume = {146}, year = {2001}, }
TY - JOUR AU - Karlheinz Gröchenig AU - Christopher Heil TI - Gabor meets Littlewood-Paley: Gabor expansions in $L^{p}(ℝ^{d})$ JO - Studia Mathematica PY - 2001 VL - 146 IS - 1 SP - 15 EP - 33 AB - It is known that Gabor expansions do not converge unconditionally in $L^{p}$ and that $L^{p}$ cannot be characterized in terms of the magnitudes of Gabor coefficients. By using a combination of Littlewood-Paley and Gabor theory, we show that $L^{p}$ can nevertheless be characterized in terms of Gabor expansions, and that the partial sums of Gabor expansions converge in $L^{p}$-norm. LA - eng KW - frames; Gabor expansions; Gabor frames; Littlewood-Paley theory; modulation space; phase space; time-frequency analysis; Walnut representation UR - http://eudml.org/doc/284992 ER -