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UID:20250702T002604EDT-6759Wr3UBr@132.216.98.100
DTSTAMP:20250702T042604Z
DESCRIPTION:Title: The algebraic area of closed lattice random walks.\n\nAb
 stract: We propose a formula for the enumeration of closed lattice random 
 walks of length n enclosing a given algebraic area. The information is con
 tained in the Kreft coefficients which encode\, in the commensurate case\,
  the Hofstadter secular equation for a quantum particle hopping on a latti
 ce coupled to a perpendicular magnetic field. The algebraic area enumerati
 on is possible because it is split in $2^{n/2-1}$ pieces\, each tractable 
 in terms of explicit combinatorial expressions.\n
DTSTART:20191029T193000Z
DTEND:20191029T203000Z
LOCATION:Room 4336\, CA\, Pav. André-Aisenstadt\, 2920\, ch. de la Tour
SUMMARY:Stéphane OUVRY\, CNRS-Université Paris Sud et Université Paris-Sacl
 ay
URL:/mathstat/channels/event/stephane-ouvry-cnrs-unive
 rsite-paris-sud-et-universite-paris-saclay-302023
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