<div dir="ltr"><div>Merhabalar,<div><br></div><div>26.05.2021 tarihinde saat 13.15 te Bilkent Üniversitesinden Prof. Dr. Alexander Goncharov başlık ve özeti aşağıda verilen bir konuşma yapacaktır. Seminer Zoom programı üzerinden online yapılacaktır. Katılmak isteyenlerin katılım bilgilerini alabilmeleri için "<a href="mailto:huseyinuysal@istanbul.edu.tr" target="_blank">huseyinuysal@istanbul.edu.tr</a> " adresine mail atmaları gerekmektedir.<span style="font-family:tahoma,sans-serif"> </span></div></div><div><br></div><div><span style="font-family:tahoma,sans-serif"><br></span></div><div><div><div><span style="font-family:tahoma,sans-serif">------------------------------</span><span style="font-family:tahoma,sans-serif">------------------------------</span> <br></div><div><b style="color:rgb(0,0,0);font-family:Arial;font-size:9pt">Başlık:</b><span style="color:rgb(0,0,0);font-family:Arial;font-size:9pt"> </span> On spaces of infinitely differential functions and their traces </div><p><b>Özet:</b> We discuss some recent results related to the basis problem and the extension problem for spaces of infinitely differentiable functions and their traces. In particular, we show that there is no characterization of the extension property (the existence of a continuous linear extension operator for Whitney spaces) in terms of densities of Hausdorff contents or related characteristics.</p>Also we show that the space of Whitney jets defined on a compact set does not possess a polynomial basis in the case of sets of infinite cardinality with isolated points. Thus, in general, there is no stability of bases in NF-spaces.<br>The research is partially supported by TÜBİTAK, Project 119F023.<br><p>--------------------------------------------------------------------</p><p><br></p></div><div><div style="color:rgb(0,0,0)"><div style="margin:0px;padding:0px 0px 20px;width:568px;color:rgb(34,34,34);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:medium"><div><div id="gmail-m_-1676462920908948110gmail-m_-3724630280005366880gmail-m_-1061050150423670915gmail-m_1885184350414612377gmail-m_-555535382709098613gmail-m_5974778985745939799gmail-m_-6178667071958242608gmail-:nr" style="font-size:0.875rem;direction:ltr;margin:8px 0px 0px;padding:0px"><div id="gmail-m_-1676462920908948110gmail-m_-3724630280005366880gmail-m_-1061050150423670915gmail-m_1885184350414612377gmail-m_-555535382709098613gmail-m_5974778985745939799gmail-m_-6178667071958242608gmail-:ns" style="overflow:hidden;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:small;line-height:1.5;font-family:Arial,Helvetica,sans-serif"><div dir="ltr"><div><div>İyi günler dileğiyle,</div><div><br></div><div>Temha</div></div></div></div></div></div></div></div></div></div></div>
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