713 citations
- Horia Hulubei National Institute for R and D in Physics and Nuclear EngineeringRO18 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del SudIT8 papers
- National Institute of Materials PhysicsRO8 papers
- Romanian AcademyRO8 papers
- University of CataniaIT8 papers
- European Organization for Nuclear ResearchCH6 papers
- University of Maryland, College ParkUS6 papers
- Vrije Universiteit BrusselBE6 papers
- Karlsruhe Institute of TechnologyDE5 papers
- Academia Oamenilor de Știință din RomâniaRO4 papers
- Brandenburg University of Technology Cottbus-SenftenbergDE4 papers
- California Institute of TechnologyUS4 papers
Showing 2007 · math-phShow all
3 papers · 2 filters
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
Symmetry properties of Penrose type tilings
Nicolae Cotfas
The Penrose tiling is directly related to the atomic structure of certain decagonal quasicrystals and, despite its aperiodicity, is highly symmetric. It is known that the numbers 1…
math-ph2007★ 12 cited
On Eisenbud's and Wigner's R-matrix: A general approach
J. Behrndt, H. Neidhardt, E. R. Racec +2
The main objective of this paper is to give a rigorous treatment of Wigner's and Eisenbud's -matrix method for scattering matrices of scattering systems consisting of two selfad…