1900-1976 chemistry condensedmatter conductionélectrique congresses crystals defects electricalengineering electricconductivity electricconductors electricinsulatorsandinsulation electricproperties electron-electroninteractions electrondistribution electronics energybandtheoryofmetals freeelectrontheoryofmetals green'sfunctions history hubbardmodel inorganic ioniccrystals magnetism many-bodyproblem materials mathematicalphysics moleculartheory nanostructuredmaterials opticalproperties oxides oxydes pathintegrals phonons physics plasmadynamics polaritons problèmesdescorps protons semiconductors slater solids solidstatechemistry solidstatephysics spectra topologicaldynamics unitedstates wavefunctions wavemechanics