Published online by Cambridge University Press: 04 October 2022
For a pseudo-Anosov flow  $\varphi $ without perfect fits on a closed
$\varphi $ without perfect fits on a closed  $3$-manifold, Agol–Guéritaud produce a veering triangulation
$3$-manifold, Agol–Guéritaud produce a veering triangulation  $\tau $ on the manifold M obtained by deleting the singular orbits of
$\tau $ on the manifold M obtained by deleting the singular orbits of  $\varphi $. We show that
$\varphi $. We show that  $\tau $ can be realized in M so that its 2-skeleton is positively transverse to
$\tau $ can be realized in M so that its 2-skeleton is positively transverse to  $\varphi $, and that the combinatorially defined flow graph
$\varphi $, and that the combinatorially defined flow graph  $\Phi $ embedded in M uniformly codes the orbits of
$\Phi $ embedded in M uniformly codes the orbits of  $\varphi $ in a precise sense. Together with these facts, we use a modified version of the veering polynomial, previously introduced by the authors, to compute the growth rates of the closed orbits of
$\varphi $ in a precise sense. Together with these facts, we use a modified version of the veering polynomial, previously introduced by the authors, to compute the growth rates of the closed orbits of  $\varphi $ after cutting M along certain transverse surfaces, thereby generalizing the work of McMullen in the fibered setting. These results are new even in the case where the transverse surface represents a class in the boundary of a fibered cone of M. Our work can be used to study the flow
$\varphi $ after cutting M along certain transverse surfaces, thereby generalizing the work of McMullen in the fibered setting. These results are new even in the case where the transverse surface represents a class in the boundary of a fibered cone of M. Our work can be used to study the flow  $\varphi $ on the original closed manifold. Applications include counting growth rates of closed orbits after cutting along closed transverse surfaces, defining a continuous, convex entropy function on the ‘positive’ cone in
$\varphi $ on the original closed manifold. Applications include counting growth rates of closed orbits after cutting along closed transverse surfaces, defining a continuous, convex entropy function on the ‘positive’ cone in  $H^1$ of the cut-open manifold, and answering a question of Leininger about the closure of the set of all stretch factors arising as monodromies within a single fibered cone of a
$H^1$ of the cut-open manifold, and answering a question of Leininger about the closure of the set of all stretch factors arising as monodromies within a single fibered cone of a  $3$-manifold. This last application connects to the study of endperiodic automorphisms of infinite-type surfaces and the growth rates of their periodic points.
$3$-manifold. This last application connects to the study of endperiodic automorphisms of infinite-type surfaces and the growth rates of their periodic points.
 ${S}^1$
 with pseudo-Anosov monodromy. Travaux de Thurston sur les surfaces (Astérisque, 66–67). Eds. A. Fathi, F. Laudenbach and V. Poénaru. Société mathématique de France, Paris, 1979, pp. 251–266 (translated to English by D. Kim and D. Margalit).Google Scholar
${S}^1$
 with pseudo-Anosov monodromy. Travaux de Thurston sur les surfaces (Astérisque, 66–67). Eds. A. Fathi, F. Laudenbach and V. Poénaru. Société mathématique de France, Paris, 1979, pp. 251–266 (translated to English by D. Kim and D. Margalit).Google Scholar $3$
-manifold I: efficient intersection of surfaces and flows. Duke Math. J. 65(3) (1992), 449–500.10.1215/S0012-7094-92-06518-5CrossRefGoogle Scholar
$3$
-manifold I: efficient intersection of surfaces and flows. Duke Math. J. 65(3) (1992), 449–500.10.1215/S0012-7094-92-06518-5CrossRefGoogle Scholar