<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr"><br>Bugün Bilkent’te güzel bir online seminer olacak. İlgilenen herkesi bekleriz.</div><div dir="ltr"><br></div><div dir="ltr">Ergün</div><div dir="ltr"><br></div><div dir="ltr"><br><br>Begin forwarded message:<br><br></div><blockquote type="cite"><div dir="ltr"><b>From:</b> Cihan Okay <<a href="mailto:cihan.okay@bilkent.edu.tr">cihan.okay@bilkent.edu.tr</a>><br><b>Date:</b> 8 March 2021 10:58:12 GMT+3<br><b>To:</b> Math Faculty <<a href="mailto:mathfac@fen.bilkent.edu.tr">mathfac@fen.bilkent.edu.tr</a>>, <a href="mailto:Mathgrad@fen.bilkent.edu.tr">Mathgrad@fen.bilkent.edu.tr</a>, <a href="mailto:begum.yilmaz@bilkent.edu.tr">begum.yilmaz@bilkent.edu.tr</a>, <a href="mailto:su.koc@ug.bilkent.edu.tr">su.koc@ug.bilkent.edu.tr</a>, <a href="mailto:turker.anil@metu.edu.tr">turker.anil@metu.edu.tr</a>, <a href="mailto:yusuf.ozer@ug.bilkent.edu.tr">yusuf.ozer@ug.bilkent.edu.tr</a>, <a href="mailto:a.habboush@bilkent.edu.tr">a.habboush@bilkent.edu.tr</a>, <a href="mailto:ahsen.ayhan@ug.bilkent.edu.tr">ahsen.ayhan@ug.bilkent.edu.tr</a>, <a href="mailto:akiferdal@gmail.com">akiferdal@gmail.com</a>, <a href="mailto:alejandromagyar@gmail.com">alejandromagyar@gmail.com</a>, <a href="mailto:alexander.samokhin@gmail.com">alexander.samokhin@gmail.com</a>, <a href="mailto:asli.ilhan@deu.edu.tr">asli.ilhan@deu.edu.tr</a>, <a href="mailto:bahra004@umn.edu">bahra004@umn.edu</a>, <a href="mailto:berkanuze@gmail.com">berkanuze@gmail.com</a>, <a href="mailto:berrin@fen.bilkent.edu.tr">berrin@fen.bilkent.edu.tr</a>, <a href="mailto:bilge.koksal@ug.bilkent.edu.tr">bilge.koksal@ug.bilkent.edu.tr</a>, "Daniel R. Grayson" <<a href="mailto:dan@math.uiuc.edu">dan@math.uiuc.edu</a>>, <a href="mailto:davidhui@connect.ust.hk">davidhui@connect.ust.hk</a>, <a href="mailto:dilan@ee.bilkent.edu.tr">dilan@ee.bilkent.edu.tr</a>, <a href="mailto:dmkubrak@gmail.com">dmkubrak@gmail.com</a>, <a href="mailto:emre.tunc@ug.bilkent.edu.tr">emre.tunc@ug.bilkent.edu.tr</a>, Enrique Torres <<a href="mailto:enrique.torresgiese@twu.ca">enrique.torresgiese@twu.ca</a>>, <a href="mailto:erkam@ee.bilkent.edu.tr">erkam@ee.bilkent.edu.tr</a>, <a href="mailto:galdobr@gmail.com">galdobr@gmail.com</a>, <a href="mailto:gb7g14@soton.ac.uk">gb7g14@soton.ac.uk</a>, <a href="mailto:gorkem.guney@ug.bilkent.edu.tr">gorkem.guney@ug.bilkent.edu.tr</a>, <a href="mailto:haoqing.wu@epfl.ch">haoqing.wu@epfl.ch</a>, <a href="mailto:hekking@kth.se">hekking@kth.se</a>, <a href="mailto:imamali.azizov@ug.bilkent.edu.tr">imamali.azizov@ug.bilkent.edu.tr</a>, <a href="mailto:irmak.kaysudu@bilkent.edu.tr">irmak.kaysudu@bilkent.edu.tr</a>, <a href="mailto:karabatmanferhat@gmail.com">karabatmanferhat@gmail.com</a>, <a href="mailto:lange@math.lmu.de">lange@math.lmu.de</a>, <a href="mailto:limanjiashe@163.com">limanjiashe@163.com</a>, <a href="mailto:mahnoor.sulaiman@bilkent.edu.tr">mahnoor.sulaiman@bilkent.edu.tr</a>, <a href="mailto:mgelvin@gmail.com">mgelvin@gmail.com</a>, <a href="mailto:mmahmoudi@sharif.ir">mmahmoudi@sharif.ir</a>, <a href="mailto:mpamuk@metu.edu.tr">mpamuk@metu.edu.tr</a>, <a href="mailto:mugekanuni@duzce.edu.tr">mugekanuni@duzce.edu.tr</a>, <a href="mailto:oussama@ug.bilkent.edu.tr">oussama@ug.bilkent.edu.tr</a>, <a href="mailto:oyku.carus@bilkent.edu.tr">oyku.carus@bilkent.edu.tr</a>, <a href="mailto:pasemra@metu.edu.tr">pasemra@metu.edu.tr</a>, <a href="mailto:popelens@gmail.com">popelens@gmail.com</a>, <a href="mailto:rchihara@ms.u-tokyo.ac.jp">rchihara@ms.u-tokyo.ac.jp</a>, <a href="mailto:rognes@math.uio.no">rognes@math.uio.no</a>, <a href="mailto:ronak.naeemaee@bilkent.edu.tr">ronak.naeemaee@bilkent.edu.tr</a>, <a href="mailto:Samuel.Bronstein@ens.fr">Samuel.Bronstein@ens.fr</a>, <a href="mailto:selin.akyurek@bilkent.edu.tr">selin.akyurek@bilkent.edu.tr</a>, <a href="mailto:sera.zenginler@bilkent.edu.tr">sera.zenginler@bilkent.edu.tr</a>, <a href="mailto:serim@bilkent.edu.tr">serim@bilkent.edu.tr</a>, <a href="mailto:simal.sevinc@ug.bilkent.edu.tr">simal.sevinc@ug.bilkent.edu.tr</a>, <a href="mailto:umar.rauf@bilkent.edu.tr">umar.rauf@bilkent.edu.tr</a>, <a href="mailto:yucehan.yazici@bilkent.edu.tr">yucehan.yazici@bilkent.edu.tr</a>, <a href="mailto:yurdakul.ogulcan@gmail.com">yurdakul.ogulcan@gmail.com</a>, <a href="mailto:yzheng@gradcenter.cuny.edu">yzheng@gradcenter.cuny.edu</a>, Alex Degtyarev <<a href="mailto:degt@fen.bilkent.edu.tr">degt@fen.bilkent.edu.tr</a>>, ali peker <<a href="mailto:h.alipeker@gmail.com">h.alipeker@gmail.com</a>>, Alihan <<a href="mailto:alihan.serim@ug.bilkent.edu.tr">alihan.serim@ug.bilkent.edu.tr</a>>, Andrew Baker <<a href="mailto:Andrew.J.Baker@glasgow.ac.uk">Andrew.J.Baker@glasgow.ac.uk</a>>, Baran Zadeoğlu <<a href="mailto:baranzadeoglu@gmail.com">baranzadeoglu@gmail.com</a>>, Beril <<a href="mailto:beril.daloglu@bilkent.edu.tr">beril.daloglu@bilkent.edu.tr</a>>, Betül Tolgay <<a href="mailto:tolgaybetul@gmail.com">tolgaybetul@gmail.com</a>>, Cem <<a href="mailto:cem.gulumser@ug.bilkent.edu.tr">cem.gulumser@ug.bilkent.edu.tr</a>>, Claude Schochet <<a href="mailto:clsmath@gmail.com">clsmath@gmail.com</a>>, Dilan <<a href="mailto:dilan@metu.edu.tr">dilan@metu.edu.tr</a>>, Ergun Yalcin <<a href="mailto:yalcine@fen.bilkent.edu.tr">yalcine@fen.bilkent.edu.tr</a>>, Esat Akin <<a href="mailto:esat.akin@ug.bilkent.edu.tr">esat.akin@ug.bilkent.edu.tr</a>>, Esma Dirican <<a href="mailto:esmadirican131@gmail.com">esmadirican131@gmail.com</a>>, Fatma Altunbulak <<a href="mailto:altunbulak@gmail.com">altunbulak@gmail.com</a>>, Gunes <<a href="mailto:gunes.tepe@bilkent.edu.tr">gunes.tepe@bilkent.edu.tr</a>>, İpek Tuvay <<a href="mailto:ipektuvay@gmail.com">ipektuvay@gmail.com</a>>, Kubra <<a href="mailto:kubra.calisir@bilkent.edu.tr">kubra.calisir@bilkent.edu.tr</a>>, Kutay <<a href="mailto:kutay.tire@ug.bilkent.edu.tr">kutay.tire@ug.bilkent.edu.tr</a>>, Laurence Barker <<a href="mailto:barker@fen.bilkent.edu.tr">barker@fen.bilkent.edu.tr</a>>, Mehmet Kirtisoglu <<a href="mailto:mehmet.kirtisoglu@ug.bilkent.edu.tr">mehmet.kirtisoglu@ug.bilkent.edu.tr</a>>, Melih Ucer <<a href="mailto:melih.ucer@bilkent.edu.tr">melih.ucer@bilkent.edu.tr</a>>, Mufit Sezer <<a href="mailto:sezer@fen.bilkent.edu.tr">sezer@fen.bilkent.edu.tr</a>>, Oguz Savk <<a href="mailto:oguz.savk@boun.edu.tr">oguz.savk@boun.edu.tr</a>>, Oscar <<a href="mailto:o.randal-williams@dpmms.cam.ac.uk">o.randal-williams@dpmms.cam.ac.uk</a>>, Oussama Amir <<a href="mailto:oussama.amir@ug.bilkent.edu.tr">oussama.amir@ug.bilkent.edu.tr</a>>, Ozgun Unlu <<a href="mailto:unluo@fen.bilkent.edu.tr">unluo@fen.bilkent.edu.tr</a>>, Pinka Dey <<a href="mailto:pinkadey11@gmail.com">pinkadey11@gmail.com</a>>, Serdar Baysal <<a href="mailto:serdar.baysal@bilkent.edu.tr">serdar.baysal@bilkent.edu.tr</a>>, Servin Bagheralmoosavi <<a href="mailto:servin@bilkent.edu.tr">servin@bilkent.edu.tr</a>>, Zilan Akbas <<a href="mailto:zilan.akbas@bilkent.edu.tr">zilan.akbas@bilkent.edu.tr</a>><br><b>Cc:</b> Calista Bernard <<a href="mailto:calista@stanford.edu">calista@stanford.edu</a>><br><b>Subject:</b> <b>BilTop - Zoom Link (Mar 8)</b><br><br></div></blockquote><blockquote type="cite"><div dir="ltr"><div dir="ltr">Join Zoom Meeting<br><a href="https://zoom.us/j/93776900203">https://zoom.us/j/93776900203</a><br><br>Meeting ID: 937 7690 0203<br>Passcode: 753061<br><br>-------<br>Time: Mar 8, 2021 @ 13:30 UTC+3<br>Speaker: Calista Bernard<br>Affiliation: Stanford University <br> <br>Title: Twisted homology operations <br><br>Abstract: In the 70s, Fred Cohen and Peter May gave a description of the mod $p$ homology of a free $E_n$-algebra in terms of certain homology operations, known as Dyer--Lashof operations, and the Browder bracket. These operations capture the failure of the $E_n$ multiplication to be strictly commutative, and they prove useful for computations. After reviewing the main ideas from May and Cohen's work, I will discuss a framework to generalize these operations to homology with certain twisted coefficient systems and give a complete classification of twisted operations for $E_{\infty}$-algebras. I will also explain computational results that show the existence of new operations for $E_2$-algebras. <br>--------<br><br>To see the upcoming talks visit: <a href="https://researchseminars.org/seminar/BilTop">https://researchseminars.org/seminar/BilTop</a><br> <br><br>Best,<br>Cihan Okay<br></div>
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