Concept
Ordre (théorie des groupes)
Publications associées (6)
Physical and unphysical regimes of self-consistent many-body perturbation theory
In the standard framework of self-consistent many-body perturbation theory, the skeleton series for the self-energy is truncated at a finite order N and plugged into the Dyson equation, which is then solved for the propagator G(N). We consider two examples ...
Scipost Foundation2024Positive moments for scattering amplitudes
Riccardo Rattazzi, Francesco Riva, Brando Bellazzini, Marc Riembau Saperas
We find the complete set of conditions satisfied by the forward 2 -> 2 scattering amplitude in unitary and causal theories. These are based on an infinite set of energy dependent quantities (the arcs) which are dispersively expressed as moments of a positi ...
AMER PHYSICAL SOC2021Finitely generated infinite simple groups of homeomorphisms of the real line
We construct examples of finitely generated infinite simple groups of homeomorphisms of the real line. Equivalently, these are examples of finitely generated simple left (or right) orderable groups. This answers a well known open question of Rhemtulla from ...
SPRINGER HEIDELBERG2019Computational Aspects of Jacobians of Hyperelliptic Curves
Nowadays, one area of research in cryptanalysis is solving the Discrete Logarithm Problem (DLP) in finite groups whose group representation is not yet exploited. For such groups, the best one can do is using a generic method to attack the DLP, the fastest ...
EPFL2016Multilevel Monte Carlo methods for stochastic elliptic multiscale PDEs
In this paper Monte Carlo finite element approximations for elliptic homogenization problems with random coefficients, which oscillate on n is an element of N a priori known, separated microscopic length scales, are considered. The convergence of multileve ...
2013On isogeny classes of Edwards curves over finite fields
We count the number of isogeny classes of Edwards curves over finite fields, answering a question recently posed by Rezaeian and Shparlinski. We also show that each isogeny class contains a {\em complete} Edwards curve, and that an Edwards curve is isogeno ...
Elsevier2012