4 papers
Logarithmic convergence of finite projective planes
Márton Borbényi, Panna TÃmea Fekete, Aranka HruÅ¡ková +1
In this paper, we study the so-called log-convergence of graphs defined by Balázs Szegedy (arXiv:1504.00858). We answer his Question 4 affirmatively: the sequence of incidence gra…
On the inclusion of bounded harmonic functions of random walks
Yair Hartman, Aranka Hrušková, Omer Segev
We investigate the conditions under which the space of bounded harmonic functions of a probability measure on a group is contained in that of another measure . We esta…
Retraction Theorems for Group Compactifications
Yair Hartman, Aranka Hrušková, Mehrdad Kalantar +1
We characterize group compactifications of discrete groups for which there exists an equivariant retraction onto the boundary. In particular, we prove an equivariant analogue of Br…
Isometric rigidity of Wasserstein spaces over Euclidean spheres
György Pál Gehér, Aranka Hrušková, Tamás Titkos +1
We study the structure of isometries of the quadratic Wasserstein space over the sphere endowed with the distance inherited from…