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# Tag Archives: Sphere

## Lecture 10: Wednesday, September 11, 2013

In the late 1700’s and early 1800’s, the French mathematician Augustin-Louis Cauchy (1789 – 1857) and German mathematician Bernhard Riemann (1826 – 1866) worked independently to create a theory of differentiating complex-valued functions . In order to define such functions, … Continue reading

## Homework Assignment 1

Let be a field contained in , and fix a number in . Recall that is the projective plane, while is the sphere of radius : This assignment is meant to show is not the same as . This assignment … Continue reading