Concept
Hamiltonian path
Related publications (62)
Adaptive Symplectic Model Order Reduction Of Parametric Particle-Based Vlasov-Poisson Equation
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. High-resolution simulations of particle-based kinetic plasma models typically require a high number of particles and thus often become computationally intractable. This is exacerbated in multi-query simulations, where the problem depends on a set of para ...
AMER MATHEMATICAL SOC2023Finding Paths for Explainable MOOC Recommendation: A Learner Perspective
Jibril Albachir Frej, Tatjana Nazaretsky
The increasing availability of Massive Open Online Courses (MOOCs) has created a necessity for personalized course recommendation systems. These systems often combine neural networks with Knowledge Graphs (KGs) to achieve richer representations of learners ...
2023The Role of Adaptivity in Source Identification with Time Queries
Understanding epidemic propagation in large networks is an important but challenging task, especially since we usually lack information, and the information that we have is often counter-intuitive. An illustrative example is the dependence of the final siz ...
EPFL2022Order parameters for antiferromagnetic structures: A first-principles study of iridium manganese
We use density-functional theory to study the ordered states of iridium manganese, demonstrating a simple but powerful method for describing magnetic structures and the transitions among them. As an illustrative example, the coupling of magnetism and cryst ...
AMER PHYSICAL SOC2022The micro-world of cographs
Cographs constitute a small point in the atlas of graph classes. However, by zooming in on this point, we discover a complex world, where many parameters jump from finiteness to infinity. In the present paper, we identify several milestones in the world of ...
ELSEVIER2022Scattering Map for the Vlasov–Poisson System
We construct (modified) scattering operators for the Vlasov–Poisson system in three dimensions, mapping small asymptotic dynamics as t→−∞ to asymptotic dynamics as t→+∞. The main novelty is the construction of modified wave operators, but we also obtain a ...
2021Symplectic dynamical low rank approximation of wave equations with random parameters
Fabio Nobile, Eleonora Musharbash, Eva Vidlicková
In this paper we propose a dynamical low-rank strategy for the approximation of second order wave equations with random parameters. The governing equation is rewritten in Hamiltonian form and the approximate solution is expanded over a set of 2S dynamical ...
2020Reduction of the sign problem near T=0 in quantum Monte Carlo simulations
Frédéric Mila, Jonathan D'Emidio
Building on a recent investigation of the Shastry-Sutherland model [S. Wessel et al., Phys. Rev. B 98, 174432 (2018)], we develop a general strategy to eliminate the Monte Carlo sign problem near the zero-temperature limit in frustrated quantum spin models ...
AMER PHYSICAL SOC2020Specular Manifold Sampling for Rendering High-Frequency Caustics and Glints
Wenzel Alban Jakob, Tizian Lucien Zeltner
Scattering from specular surfaces produces complex optical effects that are frequently encountered in realistic scenes: intricate caustics due to focused reflection, multiple refraction, and high-frequency glints from specular microstructure. Yet, despite ...
ASSOC COMPUTING MACHINERY2020