Martin Levin, On the Group of Rational Points on Elliptic Curves Over Function Fields, American Journal of Mathematics, Vol. 90, No. 2 (Apr., 1968), pp. 456-462 ...

This is equivalent to the following result: If all critical points of a rational function lie on a circle in the Riemann sphere (for example, on the real line), then the function maps this circle into ...

This course prepares students for future Calculus coursework. Topics covered include: linear equations, slope of a line, quadratic equations, functions, transformations, inequalities, curve sketching, ...