Concept
Linear function
Related publications (53)
Rotating spokes, potential hump and modulated ionization in radio frequency magnetron discharges
In this work, the transition from the gradient drift instability (GDI) into an m = 1 rotating spoke in the radio frequency magnetron discharge was studied by means of the two-dimensional axial-azimuthal (z - y) particle-in-cell/Monte Carlo collision method ...
Bristol2023Reducibility bounds of objective functions over the integers
Friedrich Eisenbrand, Kim-Manuel Klein
We study the settings where we are given a separable objective function of n variables defined in a given box of integers. We show that in many cases we can replace the given objective function by a new function with a much smaller domain. Our results appl ...
Amsterdam2023The hunt for the Karman 'constant' revisited
The log law of the wall, joining the inner, near-wall mean velocity profile (MVP) in wall-bounded turbulent flows to the outer region, has been a permanent fixture of turbulence research for over hundred years, but there is still no general agreement on th ...
CAMBRIDGE UNIV PRESS2023Efficient and Accurate Handling of Periodic Flows in Time-Sensitive Networks
Jean-Yves Le Boudec, Seyed Mohammadhossein Tabatabaee
Total Flow Analysis (TFA) is a method for the worst-case analysis of time-sensitive networks. It uses service curve characterizations of the network nodes and arrival curves of flows at their sources; for tractability, the latter are often taken to be line ...
2023Stochastic homogenization of degenerate integral functionals with linear growth
We study the limit behaviour of sequences of non-convex, vectorial, random integral functionals, defined on W1,1, whose integrands are ergodic and satisfy degenerate linear growth conditions. The latter involve suitable random, scale-dependent weight-funct ...
2023An element-based formulation for ES-FEM and FS-FEM models for implementation in standard solid mechanics finite element codes for 2D and 3D static analysis
Edge-based and face-based smoothed finite element methods (ES-FEM and FS-FEM, respectively) are modified versions of the finite element method allowing to achieve more accurate results and to reduce sensitivity to mesh distortion, at least for linear eleme ...
WILEY2022Proximal Point Imitation Learning
Volkan Cevher, Luca Viano, Igor Krawczuk, Angeliki Kamoutsi
This work develops new algorithms with rigorous efficiency guarantees for infinite horizon imitation learning (IL) with linear function approximation without restrictive coherence assumptions. We begin with the minimax formulation of the problem and then o ...
2022Latest findings on the behaviour factor q for the seismic design of URM buildings
Recent earthquakes as the 2012 Emilia earthquake sequence showed that recently built unreinforced masonry (URM) buildings behaved much better than expected and sustained, despite the maximum PGA values ranged between 0.20-0.30 g, either minor damage or str ...
SPRINGER2022A stability theory beyond the co-rotational setting for critical wave maps blow up
We exhibit non-equivariant perturbations of the blowup solutions constructed in [18] for energy critical wave maps into . Our admissible class of perturbations is an open set in some sufficiently smooth topology and vanishes near the light co ...
2020A hierarchical preconditioner for wave problems in quasilinear complexity
Jan Sickmann Hesthaven, Boris Bonev
The paper introduces a novel, hierarchical preconditioner based on nested dissection and hierarchical matrix compression. The preconditioner is intended for continuous and discontinuous Galerkin formulations of elliptic problems. We exploit the property th ...
2020