{"version":"1.0","type":"link","title":"Protorus - Newikis","description":"In mathematics, a protorus is a compact connected topological abelian group. Equivalently, it is a projective limit of tori (products of a finite number of copies of the circle group), or the Pontryagin dual of a discrete torsion-free abelian group.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}