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Positive definiteness of fourth order three dimensional symmetric tensors

2024/06/06 by Yisheng Song, Song, Yisheng
Engineering · Mathematics · #Classical Analysis and ODEs (math.CA) #Elasticity and Material Modeling #FOS: Mathematics #Optimization and Control (math.OC) #Structural Analysis and Optimization #Tensor decomposition and applications

paper · pdf · doi:10.48550/arxiv.2406.04010

openalex publication_date 2024/06/06 · openalex created_date 2024/06/08 · openalex updated_date 2026/07/28

Abstract

For a 4th order 3-dimensional symmetric tensor with its some entries 1 or -1, we show the analytic sufficient and necessary conditions of its positive definiteness. By applying these conclusions, several strict inequalities is bulit for ternary quartic homogeneous polynomials.

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