Given an open spherical polygon of geodesic edge length $L_i$ ($i=0,..,n$) and anterior spherical angles $A_i$ ($i=0,..,n-1$). My question is what are sufficient and nessecary conditions on the lengths of arcs $L_i$ and on $A_i$ for the closure of that polygon?
2026-03-30 06:45:32.1774853132
Closure condition of spherical polygons
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