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Free 2-step nilpotent Lie algebras and indecomposable representations
(Taylor & Francis, 2018-07)
Given an algebraically closed field F of characteristic 0 and an F-vector space V, let L(V) = V⊕Λ2(V) denote the free 2-step nilpotent Lie algebra associated to V. In this paper, we classify all uniserial representations ...
Approximation classes for adaptive time-stepping finite element methods
(Cornell University, 2021-03)
We study approximation classes for adaptive time-stepping finite element methods for time-dependent Partial Differential Equations (PDE). We measure the approximation error in L2([0, T) × Ω) and consider the approximation ...
Adsorbate-induced roughening of Si(100) by interactions at steps
(American Physical Society, 2010-07-19)
Through a detailed study of Cl adsorption on Si(100) using scanning-tunneling microscopy, we identified sites at steps where adsorption leads to roughening and the formation of extended pits and regrowth structures. Using ...
Naturally reductive pseudo-riemannian 2-step nilpotent lie groups
(University of Houston, 2013-01)
This paper deals with naturally reductive pseudo-Riemannian 2- step nilpotent Lie groups for which the metric is invariant under a left action. The case of nondegenerate center is characterized as follows. The simply ...
Clinical Alternatives for the Use of Compactable and Flowable Bulk-Fill Composites: A Step-by-Step Case Report
(Universidad de Costa Rica, 2019)
Minefields and humanitarian demining at the Chile-Bolivia border : a step-by-step approach
(Colegio de la Frontera Norte, 2015)
The border is a place of encounter for geopolitical and literary accounts as well as historiographical
and anthropological ones, but also is, like the doors guarded by the god Janus,
a location where the dichotomy between ...
Assistive wheelchair caster unit - improvement of step detection method -
(Universidad Tecnológica de Panamá, 2018)
Assistive wheelchair caster unit - improvement of step detection method -
(Universidad Tecnológica de Panamá, 2018)
Multi-Step Vortex Filtering For Phase Extraction
(OSA PUBLISHING, 2014)
A Time-Stepping DPG Scheme for the Heat Equation
(2017)
We introduce and analyze a discontinuous Petrov-Galerkin method with optimal test functions for the heat equation. The scheme is based on the backward Euler time stepping and uses an ultra-weak variational formulation at ...