M. Tobolski

activity

20162026

most citedLie-Hamilton systems on curved spaces: A geometrical approach

18 citations · 42 across the 19 of their papers we have counts for

collaborators

Showing 2019Show all

3 papers · 1 filter

math.RA2019

Graph algebras

Piotr M. Hajac, Mariusz Tobolski

This introduction to graphs and graph algebras provides the optimal bound for the number of all paths of length $k$ in a graph with $N \geq k$ edges and no loops. Our proof relies o…

math.QA2019★ 5 cited

Non-surjective pullbacks of graph C*-algebras from non-injective pushouts of graphs

Alexandru Chirvasitu, Piotr M. Hajac, Mariusz Tobolski

We find a substantial class of pairs of $*$ -homomorphisms between graph C*-algebras of the form $C^{*} (E) ↪ C^{*} (G) ↞ C^{*} (F)$ whose pullback C*-algebra is…

math.OA2019★ 3 cited

Equivariant Dimensions of Graph C*-algebras

Alexandru Chirvasitu, Benjamin Passer, Mariusz Tobolski

We explore the recently introduced local-triviality dimensions by studying gauge actions on graph $C^{*}$ -algebras, as well as the restrictions of the gauge action to finite cyclic s…