activity
20102025
collaborators

12 papers

math.RA2025

On realizations of the complex Lie groups and those real forms

Toshikazu Miyashita

There exist six Lie groups of type , and to be specific, . In order to define these groups, we use usually the Ca…

math.DG2024

On realizations of the complex Lie groups and those compact real forms

Toshikazu Miyashita

In order to define the complex exceptional Lie groups and these compact real forms , we usually use the Cayley algebra $ \…

math.DG2022

Realizations of inner automorphisms of order four and fixed points subgroups by them on the connected compact exceptional Lie group , Part III

Toshikazu Miyashita

The compact simply connected Riemannian 4-symmetric spaces were classified by J.A. Jim{é}nez according to type of the Lie algebras. As homogeneous manifolds, these spaces are of th…

math.DG2021

On realizations of the Lie groups $ G_{2,\boldmath\scriptstyle{H}},F_{4,\boldmath\scriptstyle{H}},E_{6,\boldmath\scriptstyle{H}},E_{7,\boldmath\scriptstyle{H}},E_{8,\boldmath\scriptstyle{H}} $, second edition

Toshikazu Miyashita

In order to define the exceptional compact Lie groups , we usually use the Cayley algebra or its complexification . In the prese…

math.DG2019

Realizations of inner automorphisms of order four and fixed points subgroups by them on the connected compact exceptional Lie group , Part II

Toshikazu MIyashita

The compact simply connected Riemannian 4-symmetric spaces were classified by J.A. Jim{é}nez according to type of the Lie algebras. As homogeneous manifolds, these spaces are of th…

math.DG2018

On some realizations of globally exceptional $\varmathbb{Z}_3 \times \varmathbb{Z}_3 $-symmetric spaces , , Part I

Toshikazu Miyashita

R. Lutz introduced the notion of -symmetric space as a generalization of the classical notion of symmetric space in 1981, where is a finite abelian group. In…