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SUMMARY:Jorge Buescu (FCUL\, Lisbon)
DTSTART:20210519T150000Z
DTEND:20210519T160000Z
DTSTAMP:20260404T145133Z
UID:ColMat-FCUL/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/ColMa
 t-FCUL/1/">A cornucopia of surprises: the Riemann Hypothesis at 162</a>\nb
 y Jorge Buescu (FCUL\, Lisbon) as part of Colóquio de Matemática - FCUL\
 n\nLecture held in Sala 6.2.33.\n\nAbstract\nThe Riemann Hypothesis (RH) i
 s arguably the most important unsolved problems in Mathematics\, being one
  of the outstanding Millenium Problems. In this talk we provide a bird’s
  eye view of RH as Riemann conceived it\, showing its connection to the ex
 act formula for distribution of primes\; we describe some classical result
 s related to RH derived during its first century of life\; and we sketch s
 everal modern approaches which lead to unexpected connections to other bra
 nches of Mathematics\, including the ghostly appearance of the critical st
 rip in the author’s apparently unconnected research.\n\npassword: coloqu
 ioDM\n
LOCATION:https://stable.researchseminars.org/talk/ColMat-FCUL/1/
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SUMMARY:José Agapito Ruiz (Fac. de Ciências\, Univ. de Lisboa)
DTSTART:20210630T150000Z
DTEND:20210630T160000Z
DTSTAMP:20260404T145133Z
UID:ColMat-FCUL/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/ColMa
 t-FCUL/2/">Eulerian polynomials via the Weyl algebra action</a>\nby José 
 Agapito Ruiz (Fac. de Ciências\, Univ. de Lisboa) as part of Colóquio de
  Matemática - FCUL\n\nLecture held in Sala 6.2.33.\n\nAbstract\nUsing the
  framework of partitions and rook placements\, we study\, in particular\, 
 the action of the Weyl algebra on the geometric series\, obtaining a gener
 alization of the Worpitzky identity and new recursive formulas for a famil
 y of polynomials that include the classical Eulerian polynomials.\n\nThis 
 is joint work with Pasquale Petrullo\, Domenico Senato\, and Maria Manuel 
 Torres.\n
LOCATION:https://stable.researchseminars.org/talk/ColMat-FCUL/2/
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