Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lorentzian spectral zeta functions on asymptotically Minkowski
  spacetimes   In this note, we consider perturbations of Minkowski space as well as more
general spacetimes on which the wave operator $\square_g$ is essentially
self-adjoint. We review a recent result which gives the meromorphic
continuation of the Lorentzian spectral zeta function density, i.e. of the
trace density of complex powers $\alpha \mapsto (\square_g-i
\varepsilon)^{-\alpha}$. In even dimension $n\geq 4$, the residue at
$\frac{n}{2}-1$ is shown to be a multiple of the scalar curvature in the limit
$\varepsilon\to 0^+$. This yields a spectral action for gravity in Lorentzian
signature.

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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph