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On the solvability of the matrix equation $(1+ae^{-frac{|X|}{b}})X=Y$

65   0   0.0 ( 0 )
 Added by Karsten Kruse
 Publication date 2020
  fields
and research's language is English
 Authors Karsten Kruse




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The treated matrix equation $(1+ae^{-frac{|X|}{b}})X=Y$ in this short note has its origin in a modelling approach to describe the nonlinear time-dependent mechanical behaviour of rubber. We classify the solvability of $(1+ae^{-frac{|X|}{b}})X=Y$ in general normed spaces $(E,|cdot|)$ w.r.t. the parameters $a,binmathbb{R}$, $b eq 0$, and give an algorithm to numerically compute its solutions in $E=mathbb{R}^{mtimes n}$, $m,ninmathbb{N}$, $m,ngeq 2$, equipped with the Frobenius norm.



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