<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div><font face="Verdana" style="font-size: 12px;" class="">Değerli liste üyeleri, <br class=""><br class="">Bilkent Matematik Bölümü Analiz Seminerleri kapsamında 14 Nisan 2020’de Yaghoub Heydarzade konuşmacı olacaktır. <br class=""><br class=""></font><span style="font-size: 12px; font-family: Verdana;" class="">Yaghoub Heydarzade (Bilkent) - </span><span style="font-size: 12px; font-family: Verdana;" class="">"Emergent Universe in the Braneworld Scenario" </span></div><div>
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<div class="column"><p class=""><font face="Verdana" style="font-size: 12px;" class="">Özet: According to Padmanabhan’s proposal, the difference between the surface
degrees of freedom and the bulk degrees of freedom in a region of space
may result in the accelerating expansion of the Universe through the relation
dV/dt = N<span style="vertical-align: -2pt;" class="">sur </span>− N<span style="vertical-align: -2pt;" class="">bulk </span>where V, N<span style="vertical-align: -2pt;" class="">bulk </span>and N<span style="vertical-align: -2pt;" class="">sur </span>are the Hubble volume, the
degrees of freedom related to the energy inside the bulk and the surface area,
respectively. In this talk, we introduce a generalization of Padmanabhan’s
proposal in the context of braneworld models. Considering the modification
of Friedmann equations arising from a general braneworld scenario, we obtain
a correction term in Padmanabhan’s relation, denoting the number of degrees
of freedom related to the extrinsic curvature of the four-dimensional brane.
Then, we show that the first and second laws of thermodynamics are valid for
this general braneworld scenario in the state of thermal equilibrium, and in
the presence of confined matter fields to the brane with the induced geometric
fluid. </font></p><div class=""><br class=""></div></div></div></div></div><font face="Verdana" style="font-size: 12px;" class="">Tarih: 14 Nisan 2020 Salı, 16:00-17:00</font></div><div><font face="Verdana" style="font-size: 12px;" class=""><br class="">Konuşma Internet üzerinden ve İngilizce yapılacaktır. Katılmak isteyenlerin seminer tarihinden bir gün önce <b class=""><a href="mailto:goncha@fen.bilkent.edu.tr" class="">goncha@fen.bilkent.edu.tr</a></b> adresine e-posta göndermeleri rica olunur.<br class=""><br class=""><br class="">Fatihcan Atay</font></div><div><font face="Verdana" style="font-size: 12px;" class=""><br class="">Bilkent Üniversitesi Matematik Bölümü<br class=""><a href="https://twitter.com/Bilkent_math" class="">https://twitter.com/Bilkent_math</a></font></div><div><font face="Verdana" style="font-size: 12px;" class=""><br class=""></font></div><div><font face="Verdana" style="font-size: 12px;" class=""><br class=""></font></div><div><font face="Verdana" style="font-size: 12px;" class=""><br class=""></font></div><div><font face="Verdana" style="font-size: 12px;" class=""><span style="background-color: rgb(254, 254, 254);" class=""></span></font></div></body></html>