<div dir="ltr">Hi everyone,<div><br></div><div>Our speaker has noted that many of us saw the talk given in the announcement yesterday, so he's giving a new talk today on his more recent work. Updated title and abstract below! See you there or at the link</div><div><br><a href="https://binghamton.zoom.us/j/94800072611" target="_blank">https://binghamton.zoom.us/j/94800072611</a></div><div><br></div><div>Cary</div><div><br>=========================================<br></div><div>Second bounded cohomology, left orderability and a question of Navas.</div><div>Abstract: In this talk I will describe some new results around the second bounded cohomology of various finitely generated and finitely presented groups acting on the line.</div><div>This leads to the solution (in the negative) of the following question of Navas: Does the vanishing of second bounded cohomology (with trivial real coefficients) imply indicability of a finitely generated left orderable group? This is joint work with Fournier-Facio.</div><div><br></div><div> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 4, 2022 at 5:33 PM Cary Malkiewich <<a href="mailto:malkiewich@math.binghamton.edu">malkiewich@math.binghamton.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi everyone,<br><br>This week we are pleased to have Yash Lodha (Vienna) speaking about left orderable groups, title and abstract below. As usual, the talk will be on Thursday at 2:50pm in WH 100E.<br><br>The speaker will be delivering the talk remotely, and we'll project it in WH 100E. In case you can't make it and would like to join remotely, you can join at the link:<br><br><a href="https://binghamton.zoom.us/j/94800072611" target="_blank">https://binghamton.zoom.us/j/94800072611</a><br><br>Some of us will meet at 12pm outside WH100E to get lunch, anyone is welcome to join!<br><br>Best,<br>Cary<br><br>=========================================<br>Title: Some new constructions in the theory of left orderable groups<br>Abstract: I will define two new constructions of finitely generated simple left orderable groups (in recent joint work with Hyde and Rivas). Among these examples are the first examples of finitely generated simple left orderable groups that admit a minimal action by homeomorphisms on the Torus, and the first family that admits such an action on the circle. I shall also present examples of finitely generated simple left orderable groups that are uniformly simple (these were constructed by me with Hyde in 2019). And present new examples that, somewhat surprisingly, have infinite commutator width. Finally, I will present some new results around the second bounded cohomology of these groups (joint with Fournier-Facio)<br></div>
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