<div dir="ltr"><font face="arial, sans-serif"><div style="text-align:left"><font color="#000000" style="">Prezados,</font></div><div style="text-align:left"><font color="#000000" style=""><br></font></div><div style="text-align:left"><font color="#000000" style="">na próxima sexta-feira 2pm começa um novo ciclo dos seminários de probabilidade e processos estocásticos do IME-USP. A agenda de seminários e seus respectivos vídeos estarão disponível em </font><a href="https://sites.google.com/usp.br/psps-ime-usp" style="font-family:Arial,Helvetica,sans-serif">https://sites.google.com/usp.br/psps-ime-usp</a>. </div><div style="text-align:left"><br></div><div style="text-align:left">Atenciosamente,</div><div style="text-align:left">Aline</div><div style="text-align:left"><br></div><div style="text-align:left">_________________________________________________________________</div></font><font face="arial, sans-serif"><div style="font-size:large;text-align:center"><span style="font-size:small"><font size="4" color="#0000ff"><b>Seminário de Probabilidade e Processos Estocásticos</b></font></span></div></font><div><div style="text-align:center"><span style="color:rgb(11,83,148);font-size:large;font-weight:700"><font face="arial, sans-serif"><br></font></span></div><div style="text-align:center"><font face="arial, sans-serif"><span style="color:rgb(33,33,33);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Daniel Ungaretti</span><span style="color:rgb(33,33,33);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  (IME - USP)</span><span style="color:rgb(11,83,148);font-weight:700"><br></span></font></div><div style="text-align:center"><font face="arial, sans-serif" color="#cc0000"><span style="background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Next Friday, September 4th - 2pm</span></font></div><div style="text-align:center"><font face="arial, sans-serif"><span style="color:rgb(33,33,33);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Live on Google Meets: </span></font><a href="https://meet.google.com/htw-ctsn-uua" target="_blank">https://meet.google.com/htw-ctsn-uua</a></div><div style="text-align:center"><font face="arial, sans-serif">Video recording will be available at</font>: <a href="https://sites.google.com/usp.br/psps-ime-usp" target="_blank">https://sites.google.com/usp.br/psps-ime-usp</a></div><div style="text-align:center"><br></div><div style="text-align:center"><br></div><div><span style="color:rgb(33,33,33);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><font face="arial, sans-serif"><span style="background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline"><b>Title</b>: SRW on the plane conditioned on not hitting the origin</span><br></font></span></div><div><span style="font-size:13pt;color:rgb(33,33,33);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><span style="font-size:13pt;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline"><font face="arial, sans-serif"><br></font></span></span></div><div><span style="color:rgb(33,33,33);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><span style="background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline"><font face="arial, sans-serif"><p dir="ltr" style="line-height:1.6;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline">Abstract</span><span style="background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline">: We will discuss the two-dimensional simple random walk conditioned on never </span><span style="background-color:transparent">hitting the origin, which is, formally speaking, the Doob's $h$-transform of </span><span style="background-color:transparent">the simple random walk with respect to the potential kernel. This random walk </span><span style="background-color:transparent">is the main building-block of the construction of random interlacements on the </span><span style="background-color:transparent">plane introduced by Comets, Popov and Vachkovskaia.  However, this walk has </span><span style="background-color:transparent">become an interesting object on its own. To justify this claim we present a few </span><span style="background-color:transparent">of its properties, citing some of the current literature and presenting the </span><span style="background-color:transparent">results of a recent joint work with Serguei Popov (Unicamp/CMUP) and Leonardo Rolla </span><span style="background-color:transparent">(UBA/NYU </span>Shangai<span style="background-color:transparent">).</span></p><p dir="ltr" style="line-height:1.6;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent"><br></span></p></font></span></span></div></div></div>