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Main Authors: Guo, Laigang, Yeung, Raymond W., Guo, Tao
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.08279
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author Guo, Laigang
Yeung, Raymond W.
Guo, Tao
author_facet Guo, Laigang
Yeung, Raymond W.
Guo, Tao
contents Conditional independence, and more generally conditional mutual independence, are central notions in probability theory. In their general forms, they include functional dependence as a special case. In this paper, we tackle two fundamental problems related to conditional mutual independence. Let $K$ and $K'$ be two conditional mutual independncies (CMIs) defined on a finite set of discrete random variables. We have obtained a necessary and sufficient condition for i) $K$ is equivalent to $K'$; ii) $K$ implies $K'$. These characterizations are in terms of a canonical form introduced for conditional mutual independence.
format Preprint
id arxiv_https___arxiv_org_abs_2602_08279
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Characterizations of Conditional Mutual Independence: Equivalence and Implication
Guo, Laigang
Yeung, Raymond W.
Guo, Tao
Probability
Information Theory
Conditional independence, and more generally conditional mutual independence, are central notions in probability theory. In their general forms, they include functional dependence as a special case. In this paper, we tackle two fundamental problems related to conditional mutual independence. Let $K$ and $K'$ be two conditional mutual independncies (CMIs) defined on a finite set of discrete random variables. We have obtained a necessary and sufficient condition for i) $K$ is equivalent to $K'$; ii) $K$ implies $K'$. These characterizations are in terms of a canonical form introduced for conditional mutual independence.
title Characterizations of Conditional Mutual Independence: Equivalence and Implication
topic Probability
Information Theory
url https://arxiv.org/abs/2602.08279