%0 Journal Article %T Moderate deviations and laws of the iterated logarithm for the renormalized self-intersection local times of planar random walks %A Richard F. Bass %A Xia Chen %A Jay Rosen %J Mathematics %D 2005 %I arXiv %X Let B_n be the number of self-intersections of a symmetric random walk with finite second moments in the integer planar lattice. We obtain moderate deviation estimates for B_n - E B_n and E B_n- B_n, which are given in terms of the best constant of a certain Gagliardo-Nirenberg inequality. We also prove the corresponding laws of the iterated logarithm. %U http://arxiv.org/abs/math/0506414v1