An inequality of Turán type for Jacobi polynomials
An inequality of Turán type for Jacobi polynomials
For Jacobi polynomials <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper P Subscript n Superscript left-parenthesis alpha comma beta right-parenthesis Baseline left-parenthesis x right-parenthesis comma alpha comma beta greater-than negative 1"> <mml:semantics> <mml:mrow> <mml:msubsup> <mml:mi>P</mml:mi> <mml:mi>n</mml:mi> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mo stretchy="false">(</mml:mo> <mml:mi>α<!-- α --></mml:mi> <mml:mo>,</mml:mo> <mml:mi>β<!-- β --></mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:mrow> </mml:msubsup> <mml:mo stretchy="false">(</mml:mo> …