ELECTRONIC STRUCTURE AND CONVENTIONAL SUPERCONDUCTIVITY OF UP1//3.

Results of a fully relativistic local density band calculation for UPt//3, which are in excellent agreement with photoemission experiments by Arko et al. , are used to study the origin of its observed superconductivity with a conventional approach-the rigid ion approximation and McMillan's theory. We find a highly anistropic electron-phonon interaction which induces strong superconducting gap anisotropy. The model developed leads to several predictions and a consisted explanation of the unusual properties of UPt//3.