387 citations
- Instituto Superior TécnicoPT71 papers
- University of LisbonPT70 papers
- Centro de Investigação em Matemática e AplicaçõesPT26 papers
- Thomas Jefferson National Accelerator FacilityUS19 papers
- University of ViennaAT18 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- Institut d'Astrophysique de ParisFR16 papers
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5 papers · 1 filter
Artinian Gorenstein algebras of embedding dimension four and socle degree three
Pedro Macias Marques, Oana Veliche, Jerzy Weyman
We prove that in the polynomial ring , with an algebraically closed field of characteristic zero, all Gorenstein homogeneous ideals such tha…
Outdoor Systems Performace and Upgrade
L. Lopes, S. Andringa, P. Assis +17
Over the last two decades, the possibility of using RPCs in outdoors systems has increased considerably. Our group has participated in this effort having installed several systems…
Stateful Realizers for Nonstandard Analysis
Bruno Dinis, Étienne Miquey
In this paper we propose a new approach to realizability interpretations for nonstandard arithmetic. We deal with nonstandard analysis in the context of (semi)intuitionistic realiz…
Delocalization of topological surface states by diagonal disorder in nodal loop semimetals
João Silva, Miguel A. N. Araújo, Miguel Gonçalves +2
The effect of Anderson diagonal disorder on the topological surface (``drumhead'') states of a Weyl nodal loop semimetal is addressed. Since diagonal disorder breaks chiral symmetr…
On the volume of a unit vector field in 3 dimensions via calibrations
Rui Albuquerque
We give a new proof of the well-known result that the minimal volume vector fields on are the Hopf vector fields. Such proof relies again on calibration theory, a…