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17 votes
0 answers
255 views

Approximation of the effective resistance on Cayley graph

Let $\Gamma$ be a finitely generated group, and denote by $G$ the Cayley graph of $\Gamma$. Denote by $d_R$ the resistance distance metric on this graph. The resistance distance metric between the ...
Tomek Odrzygozdz's user avatar
16 votes
0 answers
362 views

Does every infinite, connected, locally finite, vertex-transitive graph have a leafless spanning tree?

My question is Let $G$ be an infinite, connected, locally finite, vertex-transitive graph. Must $G$ have the following substructures? i) a leafless spanning tree; ii) a spanning forest consisting ...
Agelos's user avatar
  • 1,926
7 votes
0 answers
220 views

Is there a Cayley graph with end space infinite and discrete?

A Cayley graph of a finitely generated group must be locally finite, and we know end spaces of locally finite graphs must be compact - so we can't have an infinite and discrete end space in this ...
violeta's user avatar
  • 407
5 votes
2 answers
805 views

A generously vertex transitive graph which is not Cayley?

A graph is vertex transitive if $x \mapsto y$ by an automorphism. A graph is generously vertex transitive if $x \mapsto y \mapsto x$ by an automorphism. Simple facts: GVT $\rightarrow$ unimodular. ...
user334639's user avatar
5 votes
1 answer
407 views

Cayley graph properties

Consider an infinite graph that satisfies the following property: if any finite set of vertices is removed (and all the adjacent edges), then the resulting graph has only one infinite connected ...
Andrey  Voskresensky's user avatar
3 votes
0 answers
311 views

Induced graphs of Cayley graph

I have a Cayley graph $\mathrm{Cay}(G,S)$, its group presentation $G=\langle S | R \rangle$, and it becomes a metric graph by assigning a length equal to $1$ to each edge. I also have an induced ...
Miguel C.'s user avatar