activity
20032026
most citedFredholm-Lagrangian-Grassmannian and the Maslov index

61 citations · 89 across the 16 of their papers we have counts for

collaborators

21 papers

math.DG2026

Geodesic orbit pseudo-Riemannian -type nilmanifolds

Kenro Furutani, Irina Markina, Yurii Nikonorov

A pseudo-Riemannian manifold is called geodesic orbit (GO) if every geodesic is an orbit of a one-parameter group of isometries. For Riemannian -type groups, the GO property was…

math.DG2025

Geodesic orbit pseudo-Riemannian H-type nilmanifolds: case of minimal admissible Clifford modules

Kenro Furutani, Irina Markina, Yurii Nikonorov

We investigate the geodesic orbit property of pseudo-Riemannian nilmanifolds, specifically those known in the literature as pseudo -type Lie groups -- i.e., 2-step nilpotent Lie…

math.RA2023

Invariant integral structures in pseudo -type Lie algebras: construction and classification

Kenro Furutani, Irina Markina

Pseudo -type Lie algebras are a special class of 2-step nilpotent metric Lie algebras, intimately related to Clifford algebras $\Cl_{r,s}$. In this work we propose the classific…

math.DG2021

Calabi-Yau structure and Bargmann type transformation on the Cayley projective plane

Kurando Baba, Kenro Furutani

Our purpose is to show the existence of a Calabi-Yau structure on the punctured cotangent bundle of the Cayley projective plane and to…

math.SP2019

Spectral theory of a class of nilmanifolds attached to clifford modules

Wolfram Bauer, Kenro Furutani, Chisato Iwasaki +1

We determine the spectrum of the sub-Laplacian on pseudo H-type nilmanifolds and present pairs of isospectral but non-diffeomorphic nilmanifolds with respect to the sub-Laplacian.…

math.RA2019

Automorphism groups of pseudo -type algebras

Kenro Furutani, Irina Markina

In the present paper, we determine the group of automorphisms of pseudo -type Lie algebras, which are two-step nilpotent Lie algebras closely related to the Clifford algebras $\…