Dynamical Lefschetz trace formula for foliated spaces

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Let XX be a compact manifold with a one-codimensional foliation F{\mathcal F} and an F{\mathcal F}-compatible flow ϕ\phi. Assume that the fixed points and periodic orbits are non-degenerate as described: fixed-point tangent maps have no eigenvalue 11 for t>0t>0, and for every closed orbit γ\gamma of length l(γ)l(\gamma), every x∈γx\in\gamma, and every nonzero integer kk, Txϕkl(γ)T_x\phi^{kl(\gamma)} has eigenvalue 11 with algebraic multiplicity one. Let HˉFn(X)\bar{H}^n_{\mathcal F}(X) be the reduced leafwise cohomology and let D′(J){\mathcal D}'(J) denote Schwartz distributions on an open subset J⊂RJ\subset\mathbb R. For a fixed point xx, set εx=sgn⁡det⁡(1−Txϕt∣TxF)\varepsilon_x=\operatorname{sgn}\det(1-T_x\phi^t\mid T_x{\mathcal F}). For a closed orbit γ\gamma and k∈Z∖{0}k\in\mathbb Z\setminus\{0\}, set εγ(k)=sgn⁡det⁡(1−Txϕkl(γ)∣TxX/RYϕ,x)\varepsilon_\gamma(k)=\operatorname{sgn}\det(1-T_x\phi^{kl(\gamma)}\mid T_xX/\mathbb RY_{\phi,x}). Dynamical Lefschetz trace formula. There should exist a natural definition of a D′(R>0){\mathcal D}'(\mathbb R^{>0})-valued trace of ϕ∗\phi^* on HˉF\bullet(X)\bar{H}^{\raisebox{0.05cm}{\scriptscriptstyle\bullet}}_{\mathcal F}(X) such that, in D′(R>0){\mathcal D}'(\mathbb R^{>0}),

∑n=0dim⁡F(−1)nTr⁡(ϕ∗∣HˉFn(X))=∑γl(γ)∑k=1∞εγ(k)δkl(γ)+∑xεx∣1−eκxt∣−1.\sum_{n=0}^{\dim\mathcal F}(-1)^n\operatorname{Tr}(\phi^*\mid\bar{H}^n_{\mathcal F}(X))=\sum_\gamma l(\gamma)\sum_{k=1}^{\infty}\varepsilon_\gamma(k)\delta_{kl(\gamma)}+\sum_x\varepsilon_x|1-e^{\kappa_xt}|^{-1}.

This conjectural formula relates compact flow orbits and fixed points to the alternating trace on reduced leafwise cohomology; it was motivated by a non-rigorous argument of Guillemin, later rediscovered by Patterson. The supplied text does not establish the claimed natural trace or the formula.

References

Primary source

Christopher Deninger, “Number theory and dynamical systems on foliated spaces”, arXiv:math/0204110 (2002).

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