%0 Journal Article %T Frame Constants of Gabor Frames near the Critical Density %A A. Borichev %A K. Gr£¿chenig %A Yu. Lyubarskii %J Mathematics %D 2009 %I arXiv %X We consider Gabor frames generated by a Gaussian function and describe the behavior of the frame constants as the density of the lattice approaches the critical value. %U http://arxiv.org/abs/0909.4937v1