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SUMMARY:Single Valued Elliptic Multizetas and String Theory - Pierre Vanho
 ve\, IHES
DTSTART:20160225T130000Z
DTEND:20160225T140000Z
UID:TALK63625@talks.cam.ac.uk
CONTACT:Nima Doroud
DESCRIPTION:Modular invariance is ubiquitous in string theory.   This is t
 he symmetry of genus-one amplitudes\, as well as the non-perturbative dual
 ity symmetry of type IIb superstring in ten dimensions.  The alpha’ expa
 nsion of string theory amplitudes leads to interesting new modular forms. 
 In this talk we will describe the properties of these new modular forms.\n
 We will explain that the modular forms entering the alpha’ expansion of 
 genus one type-II superstring amplitudes are naturally expressed as partic
 ular values of single valued elliptic multiple polylogarithm. \n They are 
 natural modular generalization of the single valued elliptic multiple-zeta
  introduced by Francis Brown.
LOCATION:Potter Room (first floor\, Pav. B)
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