From the post "One Plus One Plus One",
\(q_\rho=\sqrt { 2{ mc^{ 2 } } }\,G\)
If \(q\) is consider inertia along the \(t_c\) time axis, such that
\(q=Aq_\rho\)
\(q_{ \rho }=\cfrac { 1 }{ 2Ac^{ 2 }G^{ 2 } }\)
\(q_{ \rho }=\cfrac { 1 }{ 2\pi c^{ 2 }a^{ 2}G^{ 2 } }\)
where \(a\) is the radius of the disc that defines \(q\). And \(q_\rho=0\) is a valid solution too.
