522 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT53 papers
- University of LisbonPT24 papers
- Centro de MatemáticaPT10 papers
- Universidade Técnica de LisboaPT9 papers
- University of MinhoPT9 papers
- Iscte – Instituto Universitário de LisboaPT4 papers
- Universidade do PortoPT4 papers
- Universidade Federal do Rio de JaneiroBR3 papers
- University of TurinIT3 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Heriot-Watt UniversityGB2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT2 papers
6 papers · 1 filter
Crystal melting on toric surfaces
Michele Cirafici, Amir-Kian Kashani-Poor, Richard J. Szabo
We study the relationship between the statistical mechanics of crystal melting and instanton counting in N=4 supersymmetric U(1) gauge theory on toric surfaces. We argue that, in c…
Bimodules and branes in deformation quantization
Damien Calaque, Giovanni Felder, Andrea Ferrario +1
We prove a version of Kontsevich's formality theorem for two subspaces (branes) of a vector space . The result implies in particular that the Kontsevich deformation quantization…
Hearing Delzant polytopes from the equivariant spectrum
Emily B. Dryden, Victor Guillemin, Rosa Sena-Dias
Let M^{2n} be a symplectic toric manifold with a fixed T^n-action and with a toric Kähler metric g. Abreu asked whether the spectrum of the Laplace operator on $\mathcal{C}^\…
The fundamental Gray 3-groupoid of a smooth manifold and local 3-dimensional holonomy based on a 2-crossed module
Joao Faria Martins, Roger Picken
We define the thin fundamental Gray 3-groupoid of a smooth manifold and define (by using differential geometric data) 3-dimensional holonomies, to be smooth strict Gra…
On signed diagonal flip sequences
Rui Pedro Carpentier
Eliahou \cite{2} and Kryuchkov \cite{9} conjectured a proposition that Gravier and Payan \cite{4} proved to be equivalent to the Four Color Theorem. It states that any triangulatio…
A Quantum Goldman Bracket for Loops on Surfaces
J. E. Nelson, R. F. Picken
In the context of (2+1)--dimensional gravity, we use holonomies of constant connections which generate a --deformed representation of the fundamental group to derive signed area…