5 citations · 5 across the 2 of their papers we have counts for
6 papers
Charge Transport at Atomic Scales in 1D-Semiconductors: A Quantum Statistical Model Allowing Rigorous Numerical Studies
Roisin Dempsey Braddell, Jone Uria-Albizuri, Jean-Bernard Bru +1
There has been a recent surge of interest in understanding charge transport at atomic scales. The motivations are myriad, including understanding the conductance properties of pept…
-Structures on Lie groups and Poisson reduction
Roisin Braddell, Anna Kiesenhofer, Eva Miranda
Motivated by the group of Galilean transformations and the subgroup of Galilean transformations which fix time zero, we introduce the notion of a -Lie group as a pair wh…
Non-existence of Global Transverse Poincaré Sections
Roisin Braddell
We study global transverse Poincaré sections and give topological conditions for their existence, showing they never exist in many important cases. We prove that an energy hypersur…
A -symplectic slice theorem
Roisin Braddell, Anna Kiesenhofer, Eva Miranda
In this article, motivated by the study of symplectic structures on manifolds with boundary and the systematic study of -symplectic manifolds started in [12], we prove a slice t…
An Invitation to Singular Symplectic Geometry
Roisin Braddell, Amadeu Delshams, Eva Miranda +2
In this paper we analyze in detail a collection of motivating examples to consider -symplectic forms and folded-type symplectic structures. In particular, we provide models in…
Strain-induced structural instability in FeRh
Ulrich Aschauer, Roisin Braddell, Sonia A. Brechbühl +2
We perform density functional calculations to investigate the structure of the inter-metallic alloy FeRh under epitaxial strain. Bulk FeRh exhibits a metamagnetic transition from a…