activity
20132026
most citedInvariant metrics on homogeneous spaces with equivalent isotropy summands

11 citations · 38 across the 13 of their papers we have counts for

collaborators

15 papers

math.DG2026

Biconservative hypersurfaces in space forms with harmonic curvature

Ram Shankar Gupta, Andreas Arvanitoyeorgos, Marina Statha

A biconservative hypersurface in a space form is a hypersurface whose normal part of the vector vanishes. We study such hypersurfaces with har…

math.DG2025

Non naturally reductive Einstein metrics on $\SU(N)$ via generalized flag manifolds

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We obtain new invariant Einstein metrics on the compact Lie group $\SU(N)$ which are not naturally reductive. This is achieved by using the generalized flag manifold $G/K=\SU(k_1+\…

math.DG2024★ 4 cited

Non naturally reductive Einstein metrics on the orthogonal group via real flag manifolds

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We obtain new invariant Einstein metrics on the compact Lie groups $\SO(n)$ which are not naturally reductive. This is achieved by using the real flag manifolds $\SO(k_1+\cdots +k_…

math.DG2024

A review of compact geodesic orbit manifolds and the g.o. condition for $\SU(5)/\s(\U(2)\times \U(2))$

Andreas Arvanitoyeorgos, Nikolaos Panagiotis Souris, Marina Statha

Geodesic orbit manifolds (or g.o. manifolds) are those Riemannian manifolds whose geodesics are integral curves of Killing vector fields. Equivalently, there exists a Lie g…

math.DG2021

Equigeodesics on some classes of homogeneous spaces

Marina Statha

We study homogeneous curves on some classes of reductive homogeneous spaces G=H which are geodesics with respect to any G-invariant metric on G=H. These curves are called equigeode…

math.DG2021★ 8 cited

Geodesic orbit metrics in a class of homogeneous bundles over quaternionic Stiefel manifolds

Andreas Arvanitoyeorgos, Nikolaos Panagiotis Souris, Marina Statha

Geodesic orbit spaces (or g.o. spaces) are defined as those homogeneous Riemannian spaces whose geodesics are orbits of one-parameter subgroups of . The correspondin…

math.DG2021

Geodesic orbit metrics in a class of homogeneous bundles over real and complex Stiefel manifolds

Andreas Arvanitoyeorgos, Nikolaos Panagiotis Souris, Marina Statha

Geodesic orbit spaces (or g.o. spaces) are defined as those homogeneous Riemannian spaces whose geodesics are orbits of one-parameter subgroups of . The correspondin…

math.DG2020★ 1 cited

Equigeodesics on generalized flag manifolds with -type -roots

Marina Statha

We study homogeneous curves in generalized flag manifolds with -type -roots, which are geodesics with respect to each -invariant metric on . These curves are…

math.DG2020★ 2 cited

Invariant Einstein metrics on SU(N) and complex Stiefel manifolds

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We study existence of invariant Einstein metrics on complex Stiefel manifolds $G/K = \SU(\ell+m+n)/\SU(n) $ and the special unitary groups $G = \SU(\ell+m+n)$. We decompose the Lie…

math.DG2020

Ricci flow on certain homogeneous spaces

Marina Statha

We study the behavior of the normalized Ricci flow of invariant Riemannian homogeneous metrics at infinity for generalized Wallach spaces, generalized flag manifolds with four isot…

math.DG2018★ 2 cited

Homogeneous Einstein metrics on Stiefel manifolds associated to flag manifolds with two isotropy summands

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We study invariant Einstein metrics on the Stiefel manifold of all orthonormal -frames in . The isotropy rep…

math.DG2018★ 10 cited

New homogeneous Einstein metrics on quaternionic Stiefel manifolds

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We consider invariant Einstein metrics on the quaternionic Stiefel manifolds of all orthonormal -frames in . This manifold is diffeomorphic to t…

math.DG2016★ 11 cited

Invariant metrics on homogeneous spaces with equivalent isotropy summands

Marina Statha

The space of -invariant metrics on a homogeneous space is in one-to-one correspondence with the set of inner products on the tangent space $\fr{m}\cong T_{\it o}(G/H)$, wh…

math.DG2015

New Einstein metrics on the Lie group which are not naturally reductive

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We obtain new invariant Einstein metrics on the compact Lie groups () which are not naturally reductive. This is achieved by imposing certain symmetry assumptions…

math.DG2013

New homogeneous Einstein metrics on Stiefel manifolds

Andreas Arvanitoyeorgos, Yusuke Sakane, Marina Statha

We consider invariant Einstein metrics on the Stiefel manifold $V_q\bb{R} ^n$ of all orthonormal -frames in $\bb{R}^n$. This manifold is diffeomorphic to the homogeneous space $…