{ "id": "2403.18944", "version": "v1", "published": "2024-03-27T18:43:40.000Z", "updated": "2024-03-27T18:43:40.000Z", "title": "The generators of the K-groups of the sphere", "authors": [ "Hermann Schulz-Baldes", "Tom Stoiber" ], "journal": "Expositiones Mathematicae 41, 125519 (2023)", "categories": [ "math-ph", "math.MP" ], "abstract": "This note presents an elementary iterative construction of the generators for the complex $K$-groups $K_i(C(\\SM^d))$ of the $d$-dimensional spheres. These generators are explicitly given as the restrictions of Dirac or Weyl Hamiltonians to the unit sphere. Connections to solid state physics are briefly elaborated on.", "revisions": [ { "version": "v1", "updated": "2024-03-27T18:43:40.000Z" } ], "analyses": { "keywords": [ "generators", "solid state physics", "elementary iterative construction", "dimensional spheres", "weyl hamiltonians" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }