We investigate the properties of the collision operator Q associated to the linear Boltzmann equation for dissipative hard-spheres arising in granular gas dynamics. We establish that, as in the case of non-dissipative interactions, the gain collision operator is an integral operator whose kernel is made explicit. On deduces from this result a complete picture of the spectrum of Q in an Hilbert setting, generalizing results from Carleman to granular gases. From this integral representation of Q we also obtain that the semigroup associated to the linear Boltzmann equation for dissipative hard spheres is honest.

Integral representation of the linear Boltzmann operator for granular gas dynamics with applications

ARLOTTI, Luisa;
2007-01-01

Abstract

We investigate the properties of the collision operator Q associated to the linear Boltzmann equation for dissipative hard-spheres arising in granular gas dynamics. We establish that, as in the case of non-dissipative interactions, the gain collision operator is an integral operator whose kernel is made explicit. On deduces from this result a complete picture of the spectrum of Q in an Hilbert setting, generalizing results from Carleman to granular gases. From this integral representation of Q we also obtain that the semigroup associated to the linear Boltzmann equation for dissipative hard spheres is honest.
File in questo prodotto:
File Dimensione Formato  
JSP.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 549.23 kB
Formato Adobe PDF
549.23 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/852436
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 14
social impact