{"version":"1.0","type":"link","title":"Abstract index notation - Newikis","description":"Abstract index notation (also referred to as slot-naming index notation) is a mathematical notation for tensors and spinors that uses indices to indicate their types, rather than their components in a particular basis. The indices are mere placeholders, not related to any basis and, in particular,…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}