![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Personal comments are made about the title subjects, including: the relation of Friedel oscillations of Hume–Rothery stabilization; how calculations may resolve the random-tiling versus ideal pictures of quasicrystals; and the role of entropics apart from tile-configurational.
Acknowledgements
I am grateful to Marc de Boissieu, Veit Elser, Marek Mihalkovič, Walter Steurer and Mike Widom for conversations and communications. This work was supported by the US Department of Energy grant DE-FG02-89ER-45405.