TY - JOUR A1 - Keller, Matthias A1 - Lenz, Daniel A1 - Münch, Florentin A1 - Schmidt, Marcel A1 - Telcs, Andras T1 - Note on short-time behavior of semigroups associated to self-adjoint operators JF - Bulletin of the London Mathematical Society N2 - We present a simple observation showing that the heat kernel on a locally finite graph behaves for short times t roughly like t(d), where d is the combinatorial distance. This is very different from the classical Varadhan-type behavior on manifolds. Moreover, this also gives that short-time behavior and global behavior of the heat kernel are governed by two different metrics whenever the degree of the graph is not uniformly bounded. Y1 - 2016 U6 - https://doi.org/10.1112/blms/bdw054 SN - 0024-6093 SN - 1469-2120 VL - 48 SP - 935 EP - 944 PB - Oxford Univ. Press CY - Oxford ER -