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We compute the precise logarithmic corrections to Alexander-Orbach behaviourfor various quantities describing the geometric and spectral properties of thefour-dimensional uniform spanning tree. In particular, we prove that the volumeof an intrinsic $n$-ball in the tree is $n^2 (\log n)^{-1/3+o(1)}$, that thetypical intrinsic displacement of an $n$-step random walk is $n^{1/3} (\logn)^{1/9-o(1)}$, and that the $n$-step return probability of the walk decays as$n^{-2/3}(\log n)^{1/9-o(1)}$.

Logarithmic corrections to the Alexander-Orbach conjecture for the four-dimensional uniform spanning tree