Foto del docente

Roberta Nibbi

Associate Professor

Department of Mathematics

Academic discipline: MAT/07 Mathematical Physics

Research

Keywords: asymptotic behavior thermo-viscous-elastic plate phase transition porous-thermo-elasticity thermodynamics dissipative boundary conditions materials with memory electromagnetism

1) Asymptotic stability in continuum mechanics with boundary control. 
2) Thermomechanical and elettromagnetic models with memory: thermodynamical potentials and evolutive problems.
3) Poro-elastic and diffusive models: costitutive equations and stability results. 
4) Constitutive models in superconductivity and Ginzburg-Landau equations.

  • Asymptotic stability in continuum mechanics with boundary control

We consider dissipative materials (such as porous or thermoelastic media) for which the internal dissipation is not sufficient to determine an energy decay and we study boundary control problems in order to obtain polynomial or exponential decay results.

  • Thermo-mechanical and electromagnetic models: thermodynamical potentials and evolutive problems

Since there is not uniqueness in the identification of the thermodynamical potentials for materials with memory, we study thoroughly the free energy potentials and their influence on  the wellposedeness of the evolutive problem.

  • Poro-elastic and diffusive models: constitutive equations and stability results
We consider models of materials with internal structure and study the stabilizing effects of the internal dissipation on the solutions of the evolutive  problems.
  • Constitutive models in superconductivity and Ginzburg-Landau equations
We consider some evolutive problems related to the  Gor'kov-Eliashbergh equations and study the relative absorbing sets and  attractors