for a circle, the perpendicular bisectors of chords always meet at the centre. But it's more complicated for an ellipse:pic.twitter.com/fyXTWmo3pk
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What is S^2C?
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Second symmetric product. Take CxC and quotient by the involution swapping points. For any nonsingular complex curve/Riemann surface, all symmetric products S^nC (take C^n, quotient by permutations) are nonsingular varieties/complex manifolds.
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Fit should be for
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Show that f is constant if and only if the given two points p_1, p_2 together with the two intersections of C with the line p_1p_2 have a specific cross ratio.
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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