<math display='block'> <mmlrow> <mmlsub> <mmli>T</mi> <mmli>p</mi> </msub> <mmlo>=</mo><mmlo>&#x2212;</mo><mmlstyle displaystyle='true'> <mmlrow> <mmlsubsup> <mmlo>&#x222B;</mo> <mmli>N</mi> <mmli>r</mi> </msubsup> <mmlrow> <mmlo stretchy='false'>(</mo><mmlsub> <mmli>P</mi> <mmlrow> <mmli>E</mi><mmli>F</mi> </mrow> </msub> <mmlo>&#x2212;</mo><mmlsub> <mmli>P</mi> <mmli>v</mi> </msub> <mmlo stretchy='false'>)</mo><mmli>w</mi><mmlo stretchy='false'>(</mo><mmli>r</mi><mmlo>&#x2212;</mo><mmli>b</mi><mmlo>&#x2212;</mo><mmli>l</mi><mmlo stretchy='false'>)</mo><mmli>d</mi><mmli>s</mi> </mrow> </mrow> </mstyle><mmlo>=</mo><mmlstyle displaystyle='true'> <mmlunderover> <mmlo>&#x2211;</mo> <mmlrow> <mmli>m</mi><mmlo>=</mo><mmln>1</mn> </mrow> <mmli>N</mi> </munderover> <mmlrow> <mmlo stretchy='false'>(</mo><mmlsub> <mmli>P</mi> <mmlrow> <mmli>E</mi><mmli>F</mi> </mrow> </msub> <mmlo>&#x2212;</mo><mmlsub> <mmli>P</mi> <mmli>v</mi> </msub> <mmlo stretchy='false'>)</mo><mmli>w</mi><mmlo stretchy='false'>(</mo><mmli>r</mi><mmlo>&#x2212;</mo><mmli>b</mi><mmlo>&#x2212;</mo><mmli>l</mi><mmlo stretchy='false'>)</mo><mmli>&#x03B4;</mi><mmli>s</mi> </mrow> </mstyle> </mrow> </math>