activity
20032021
most citedCollapsing 4-manifolds under a lower curvature bound

11 citations · 43 across the 12 of their papers we have counts for

collaborators

12 papers

math.MG2021★ 1 cited

Two-dimensional metric spaces with curvature bounded above I

Koichi Nagano, Takashi Shioya, Takao Yamaguchi

We determine the local geometric structure of two-dimensional metric spaces with curvature bounded above as the union of finitely many properly embedded/branched immersed Lipschitz…

math.DS2017

Hausdorff dimension of asymptotic self-similar sets

Daruhan Wu, Takao Yamaguchi

In this paper, we introduce the notion of asymptotic self-similar sets on general doubling metric spaces by extending the notion of self-similar sets, and determine their Hausdorff…

math.DG2017

Obtuse constants of Alexandrov spaces

Ayato Mitsuishi, Takao Yamaguchi

We introduce a new geometric invariant called the obtuse constant of spaces with curvature bounded below. We first find relations between this invariant and the normalized volume.…

math.MG2017

Lipschitz homotopy convergence of Alexandrov spaces

Ayato Mitsuishi, Takao Yamaguchi

We introduce the notion of good coverings of metric spaces, and prove that if a metric space admits a good covering, then it has the same locally Lipschitz homotopy type as the ner…

math.DG2015★ 3 cited

Inradius collapsed manifolds

Takao Yamaguchi, Zhilang Zhang

In this paper, we study collapsed manifolds with boundary, where we assume a lower sectional curvature bound, two sides bounds on the second fundamental forms of boundaries and upp…

math.MG2015★ 1 cited

Good coverings of Alexandrov spaces

Ayato Mitsuishi, Takao Yamaguchi

In the present paper, we define a notion of good coverings of Alexandrov spaces with curvature bounded below, and prove that every Alexandrov space admits such a good covering and…