Sentence 1: For scalar fluctuations , formula _ 9 is referred to as the scalar spectral index , with formula _ 10 corresponding to scale invariant fluctuations .
Sentence 2: For scalar fluctuations , Formula 9 is referred to as a scalar spectral index , with the formula 10 corresponding to scaleninvariant fluctuations .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?