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Uniqueness of Gibbs fields with unbounded random interactions on unbounded degree graphs
Letters in Mathematical Physics ( IF 1.2 ) Pub Date : 2020-06-29 , DOI: 10.1007/s11005-020-01305-w
Dorota Kȩpa-Maksymowicz , Yuri Kozitsky

Gibbs fields with continuous spins are studied, the underlying graphs of which can be of unbounded vertex degree and the spin–spin pair interaction potentials are random and unbounded. A high-temperature uniqueness of such fields is proved to hold under the following conditions: (a) the vertex degree is of tempered growth, i.e., controlled in a certain way; (b) the interaction potentials $$W_{xy}$$ W xy are such that $$\Vert W_{xy}\Vert =\sup _{\sigma ,\sigma '} |W_{xy}(\sigma , \sigma ')|$$ ‖ W xy ‖ = sup σ , σ ′ | W xy ( σ , σ ′ ) | are independent (for different edges $$\langle x, y \rangle $$ ⟨ x , y ⟩ ), identically distributed and exponentially integrable random variables.

中文翻译:

无界度图上具有无界随机相互作用的吉布斯场的唯一性

研究了具有连续自旋的吉布斯场,其基础图可以是无界顶点度并且自旋-自旋对相互作用势是随机和无界的。这些场的高温唯一性被证明在以下条件下成立: (a) 顶点度是缓和增长的,即以某种方式控制;(b) 相互作用势 $$W_{xy}$$W xy 使得 $$\Vert W_{xy}\Vert =\sup _{\sigma ,\sigma '} |W_{xy}(\sigma , \sigma ')|$$ ‖ W xy ‖ = sup σ , σ ′ | W xy ( σ , σ ′ ) | 是独立的(对于不同的边 $$\langle x, y \rangle $$ ⟨ x , y ⟩ ),同分布且指数可积分的随机变量。
更新日期:2020-06-29
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