The ๐ท-resultant, singularities and the degree of unfaithfulness
The ๐ท-resultant, singularities and the degree of unfaithfulness
We introduce the <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper D"> <mml:semantics> <mml:mi>D</mml:mi> <mml:annotation encoding="application/x-tex">D</mml:annotation> </mml:semantics> </mml:math> </inline-formula>-resultant of two polynomials in one variable and show how it can be used to decide if <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="k left-parenthesis f left-parenthesis t right-parenthesis comma g left-parenthesis t right-parenthesis right-parenthesis equals k โฆ