Publicación: GEVREY CLASS FOR LOCALLY THERMOELASTIC BEAM EQUATIONS
Fecha
2022
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ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK
Resumen
IN THIS ARTICLE, WE USE THE EULER?BERNOULLI MODEL TO STUDY THE VIBRATIONS OF A BEAM COMPOSED OF TWO COMPONENTS, ONE CONSISTING OF A THERMOELASTIC MATERIAL AND THE OTHER OF A SIMPLY ELASTIC MATERIAL THAT DOES NOT PRODUCE DISSIPATION. OUR MAIN RESULT IS THAT THE SEMIGROUP ASSOCIATED WITH THIS MODEL IS DIFFERENTIABLE. IN PARTICULAR, OUR PROOF IMPLIES THE FOLLOWING PROPERTIES OF THE SEMIGROUP (1) IT IS OF GEVREY CLASS 12. (2) IT IS EXPONENTIALLY STABLE. (3) IT POSSESSES THE PROPERTY OF LINEAR STABILITY AND HAS A REGULARIZING EFFECT ON THE INITIAL DATA.
