Abstract
We consider cubic surfaces with rational coefficients that contain a
rational point and satisfy a certain condition regarding their coefficients.
Each such cubic surface is shown to be birationally equivalent to a
surface of the form z2 = f(x, y), where f(x, y) is a polynomial of degree
at most 4. Our method is similar to that which Tate and Silverman
used in [2] to put cubic curves into Weierstrass form.