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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><i><span style="font-size:12pt;font-family:"Times New Roman","serif"">Sayın liste üyeleri,<br></span></i></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif""> </span><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><i><span style="font-size:12pt;font-family:"Times New Roman","serif"">MSGSU
Matematik Bölümü Genel Seminerinde bu haftaki konuşmacımız Ergün Yalçın.
Seminer ile ilgili tüm detaylar aşağıda yer almaktadır. </span></i><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif""> </span><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">Ergün Yalçın, 
<span></span>Bilkent Üniversitesi</span><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif""> </span><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;line-height:115%;font-family:"Times New Roman","serif"">Başlık:</span> <span style="font-size:12pt;line-height:115%;font-family:"Times New Roman","serif"">Finite Group Actions on Spheres and Glauberman’s ZJ-theorem<span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">Özet: I will
survey some of the known results on finite group actions on <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">finite or
finite dimensional CW-complexes homotopy equivalent to a sphere.<span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">One of the
key ingredients for the construction of a G-action on a homotopy sphere <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">is the
existence of an effective representation of a Sylow p-subgroup of G <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">which
respects fusion in G. Recently we showed that these representations <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">can be found
using Glauberman’s ZJ-theorem in finite group theory. The condition <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">for this
theorem is related to the group Qd(p), and because of this, we also prove <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">a result
about groups which involve Qd(p). In the talk I will present some of
ideas <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">behind our
proofs. This is a joint work with Yasir Kızmaz and the project was
supported <span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">by Tubitak
1001 project with grant no 116F194.<span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span><span> </span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span><span> </span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;font-family:"Times New Roman","serif"">Tarih: 5
Mart Perşembe 2020, 16:00</span><span><span></span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:"Calibri","sans-serif""><span style="font-size:12pt;line-height:115%;font-family:"Times New Roman","serif";color:black">Yer:  Matematik Bölümü Seminer Odası</span><span><span></span></span></p>



<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><span><span> </span></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri","sans-serif""><i><span style="font-size:12pt;font-family:"Times New Roman","serif";color:black">Seminerde görüşmek dileğiyle,</span></i><span><span></span></span></p>





<div><br></div><div><i>Fatma Altunbulak Aksu</i><br></div><br style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;font-style:italic;text-align:center"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><span style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;font-style:italic;text-align:center"></span><br></div></div></div></div></div></div>

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