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From the 1 of 7 linked papers with an AI index.

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7 papers

math.DG2026

Strict concavity of the growth indicator function for relatively Anosov groups

Dongryul M. Kim, Hee Oh, Andrew Zimmer

The paper proves that for non‑elementary relatively Anosov subgroups of higher‑rank semisimple Lie groups, the growth indicator function is strictly concave in non‑collinear direct…

math.GT2026

A global shadow lemma for relatively Morse groups in higher rank

Dongryul M. Kim, Hee Oh

Patterson-Sullivan measures encode the distribution of orbits of discrete group actions near the boundary. In this paper, we prove a global shadow lemma for Patterson-Sullivan meas…

math.GR2025

Ahlfors regularity of Patterson-Sullivan measures of Anosov groups and applications

Subhadip Dey, Dongryul M. Kim, Hee Oh

For all Zarski dense Anosov subgroups of a semisimple real algebraic group, we prove that their limit sets are Ahlfors regular for intrinsic conformal premetrics. As a consequence,…

math.DS2025

Properly discontinuous actions, growth indicators, and conformal measures for transverse subgroups

Dongryul M. Kim, Hee Oh, Yahui Wang

Let be a connected semisimple real algebraic group. The class of transverse subgroups of includes all discrete subgroups of rank one Lie groups and any subgroups of Anosov…

math.GR2025

Zariski dense non-tempered subgroups in higher rank of nearly optimal growth

Mikolaj Fraczyk, Hee Oh

We construct the first example of a Zariski-dense, discrete, non-lattice subgroup of a higher rank simple Lie group , which is non-tempered in the sense that the quasi-re…

math.DS2025

Relatively Anosov groups: finiteness, measure of maximal entropy, and reparameterization

Dongryul M. Kim, Hee Oh

For a geometrically finite Kleinian group , the Bowen-Margulis-Sullivan measure is finite and is the unique measure of maximal entropy for the geodesic flow, as shown by Sulliv…