We prove asymptotics for the density of everywhere locally soluble diagonal quadric surfaces parameterised by rational points on the split quadric surface y_0y_1=y_2y_3 which do not satisfy -y_0y_1= nor -y_0y_3=.
No takes yet. Share an insight, caveat, or question.
C P Wilson (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: