Jianping Jiang

activity

20242026

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math.PR2026

Phase transition in the antiferromagnetic Ising model with external field

Jianping Jiang, Sike Lang

Consider the nearest-neighbor antiferromagnetic Ising model on $Z^{d}$ , $d \geq 2$ , at inverse temperature $β$ and in a uniform external field $h$ . Let $β_{c} (d)$ be the critical…

math.PR2026

The free state for the Potts model on Cayley trees is either extremal or glassy

Jianping Jiang, Sike Lang

For the Potts model on the Cayley tree $T^{d}$ with branching factor $d \geq 2$ , we consider the free state which is obtained as the limiting Gibbs measure with free boundary…