Results 11 to 20 of about 331,232 (263)
Energies, 2021 In view of the aggravation of global pollution and greenhouse effects, fuel cell electric vehicles (FCEVs) have attracted increasing attention, owing to their ability to release zero emissions.
Ke Song +4 more
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The H-graph with equal masses in terms of multiple polylogarithms
Physics Letters B, 2021 The initial phase of the inspiral process of a binary system producing gravitational waves can be described by perturbation theory. At the third post-Minkowskian order a two-loop double box graph, known as H-graph contributes.
Philipp Alexander Kreer +1 more
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Feynman integrals for binary systems of black holes
SciPost Physics Proceedings, 2022 The initial phase of the inspiral process of a binary black-hole system can be described by perturbation theory. At the third post-Minkowskian order a two-loop double box graph, known as H-graph, contributes.
Philipp Alexander Kreer, Robert Runkel, Stefan Weinzierl
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The Study of the Theoretical Size and Node Probability of the Loop Cutset in Bayesian Networks
Mathematics, 2020 Pearl’s conditioning method is one of the basic algorithms of Bayesian inference, and the loop cutset is crucial for the implementation of conditioning.
Jie Wei, Yufeng Nie, Wenxian Xie
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Generating loop graphs via Hopf algebra in quantum field theory [PDF]
Journal of Mathematical Physics, 2006 We use the Hopf algebra structure of the time-ordered algebra of field operators to generate all connected weighted Feynman graphs in a recursive and efficient manner. The algebraic representation of the graphs is such that they can be evaluated directly as contributions to the connected n-point functions.
Mestre, Ângela, Oeckl, Robert
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The d=6 trace anomaly from quantum field theory four-loop graphs in one dimension [PDF]
Nuclear Physics B, 2001 23 pages, 17 ...
Hatzinikitas, A., Portugal, R.
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Hybrid Robust Model Predictive Based Controller for a Class of Multi-Agent Aerial dynamic Systems [PDF]
AUT Journal of Electrical Engineering, 2022 The decentralized control of a multi-agent system with leader-follower consensus is investigated. The system is formulated in graph theory, and a general configuration for L-F formation is proposed.
Erfan Nejabat, Amirhosein Nikoofard
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A radical theory for graphs that do not admit loops
Periodica Mathematica Hungarica, 2022 AbstractThere is a well-developed theory of connectednesses and disconnectednesses (= radical theory) for the category of graphs that admit loops. Here it is shown that such a theory for the category of graphs that do not allow loops degenerates to the trivial case for all the Hoehnke radicals, but there are non-trivial connectednesses (KA-radical ...
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Chinese Journal of Mechanical Engineering, 2020 The current type synthesis of the redundant actuated parallel mechanisms is adding active-actuated kinematic branches on the basis of the traditional parallel mechanisms, or using screw theory to perform multiple getting intersection and union to ...
Yongquan Li, Yang Zhang, Lijie Zhang
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Perturbative Noncommutative Quantum Gravity [PDF]
, 2000 We study perturbative noncommutative quantum gravity by expanding the gravitational field about a fixed classical background. A calculation of the one loop gravitational self-energy graph reveals that only the non-planar graviton loops are damped by ...
't Hooft +40 more
core +4 more sources