18 citations · 26 across the 4 of their papers we have counts for
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math-ph2007★ 7 cited
Estimating the number of negative eigenvalues of a relativistic Hamiltonian with regular magnetic field
Viorel Iftimie, Marius Mantoiu, Radu Purice
We prove the analog of the Cwickel-Lieb-Rosenblum estimation for the number of negative eigenvalues of a relativistic Hamiltonian with magnetic field $B\in C^\infty_{\rm{pol}}(\mat…
math-ph2007
Spectral analysis for convolution operators on locally compact groups
Marius Mantoiu, Rafael Tiedra de Aldecoa
We consider operators of convolution with measures on locally compact groups. We characterize the spectrum of by constructing auxiliary operators whose kernel conta…
math-ph2004★ 18 cited
Twisted Crossed Products and Magnetic Pseudodifferential Operators
Marius Mantoiu, Radu Purice, Serge Richard
There is a connection between the Weyl pseudodifferential calculus and crossed product C*-algebras associated with certain dynamical systems. And in fact both topics are involved i…