I derive sharp semiclassical asymptotics of \(\int {|e_h } \left( {x,y,0} \right)|^2 \omega \left( {x,y} \right)dxdy\) where e h (x, y, τ) is the Schwartz kernel of the spectral projector and ω(x, y) is singular as x = y. I also consider asymptotics of more general expressions.
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Ivrii, V. (2009). Sharp Spectral Asymptotics for Dirac Energy. In: Isakov, V. (eds) Sobolev Spaces in Mathematics III. International Mathematical Series, vol 10. Springer, New York, NY. https://doi.org/10.1007/978-0-387-85652-0_4
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