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hep-th2017★ 77 cited
Feynman integral relations from parametric annihilators
Thomas Bitoun, Christian Bogner, Rene Pascal Klausen +1
We study shift relations between Feynman integrals via the Mellin transform through parametric annihilation operators. These contain the momentum space IBP relations, which are wel…
math.AG2017
Length of local cohomology in positive characteristic and ordinarity
Thomas Bitoun
Let be the ring of Grothendieck differential operators of the ring of polynomials in variables with coefficients in a perfect field of positive characteristic …