New a-T-menable HNN-Extensions
Journal of Lie Theory, Volume 13 (2003) no. 2, pp. 383-385
The Baumslag-Solitar groups are a-T-menable. This is proved by embedding them into topological groups and studying representation theoretic properties of the latter. The paper is motivated by a question of A. Valette.
DOI: 10.5802/jolt.309
Classification: 20F65, 20E06, 43A07
Keywords: locally compact groups, affine isometric actions, amenable groups
@article{JOLT_2003_13_2_a3,
     author = {S. R. Gal and T. Januszkiewicz},
     title = {New {a-T-menable} {HNN-Extensions}},
     journal = {Journal of Lie Theory},
     pages = {383--385},
     year = {2003},
     volume = {13},
     number = {2},
     doi = {10.5802/jolt.309},
     zbl = {1041.20028},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.309/}
}
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S. R. Gal; T. Januszkiewicz. New a-T-menable HNN-Extensions. Journal of Lie Theory, Volume 13 (2003) no. 2, pp. 383-385. doi: 10.5802/jolt.309

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