2007/07/15 by Jose Capco, Capco, Jose · 2 citations
Mathematics · #13A35 (Secondary) #13B22 #13J25 (Primary) #Commutative Algebra (math.AC) #FOS: Mathematics #Rings and Algebras (math.RA) #Rings, Modules, and Algebras
paper · pdf · doi:10.48550/arxiv.0707.2189
openalex publication_date 2007/07/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Here we try to distinguish and compare different notions of real closedness mainly one developed by N. Schwartz in his Habilitationschrift and the other developed by A. Sankaranand K. Varadarajan which we shall call real closed *. We stick to the definition of real closed rings as defined and characterized N. Schwartz and we try to determine and characterize real closed rings that are real closed *. The main result is that real closed rings have unique real closure * and that real closure of real closed * rings arent necessarily real closed *.