Tim Steger

most citedMaximal abelian subalgebras of the group factor of an

A_{2}

group

1 citations · 1 across the 4 of their papers we have counts for

collaborators

4 papers

math.OA2013★ 1 cited

Maximal abelian subalgebras of the group factor of an $A_{2}$ group

Guyan Robertson, Tim Steger

An $A_{2}$ group $Γ$ acts simply transitively on the vertices of an affine building $△$ . We study certain subgroups $Γ_{0} ≅ Z^{2}$ which act on certain apa…

math.FA2013

Negative definite functions and a dynamical characterization of property (T) for countable groups

Guyan Robertson, Tim Steger

A class of negative definite kernels is defined in terms of measure spaces. Using this concept, property (T) for a countable group $\G$ is characterized in terms of measure preserv…

math.CO2013

Irreducible subshifts associated with $A ~_{2}$ buildings

Guyan Robertson, Tim Steger

Let $Γ$ be a group of type rotating automorphisms of a building $\cB$ of type $A_{2}$ , and suppose that $Γ$ acts freely and transitively on the vertex set of $\cB$. The ap…

math.FA2013

A Haagerup Inequality for $\tA_1\times\tA_1$ and $\tA_2$ Buildings

Jacqui Ramagge, Guyan Robertson, Tim Steger

Haagerup's inequality for convolvers on free groups may be interpreted as a result on $\tA_1$ buildings, i.e. trees. Here are proved analogous inequalities for discrete groups acti…

Maximal abelian subalgebras of the group factor of an A2​ group

Negative definite functions and a dynamical characterization of property (T) for countable groups

Irreducible subshifts associated with A~2​ buildings

A Haagerup Inequality for $\tA_1\times\tA_1$ and $\tA_2$ Buildings

Maximal abelian subalgebras of the group factor of an $A_{2}$ group

Irreducible subshifts associated with $A ~_{2}$ buildings