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In this paper, we focus on the perturbation analysis of the largestC-eigenvalue of the piezoelectric-type tensor which has concrete physicalmeaning which determines the highest piezoelectric coupling constant. Threeperturbation bounds are presented, theoretical analysis and numerical examplesshow that the third perturbation bound has high accuracy when the norm of theperturbation tensor is small.

Perturbation bounds for the largest C-eigenvalue of piezoelectric-type tensors