Results 11 to 20 of about 19,826 (256)
Symplectic Applicability of Lagrangian Surfaces [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2009 We develop an approach to affine symplectic invariant geometry of Lagrangian surfaces by the method of moving frames. The fundamental invariants of elliptic Lagrangian immersions in affine symplectic four-space are derived together with their ...
Lorenzo Nicolodi, Emilio Musso
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General approach to the Lagrangian ambiguity in f(R, T) gravity
European Physical Journal C: Particles and Fields, 2021 The f(R, T) gravity is a theory whose gravitational action depends arbitrarily on the Ricci scalar, R, and the trace of the stress–energy tensor, T; its field equations also depend on matter Lagrangian, $$\mathscr {L}_{m}$$ L m . In the modified theories
G. A. Carvalho +3 more
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A Lagrangian approach to classical thermodynamics [PDF]
EPL (Europhysics Letters), 2017 The specification of microstates of interacting dynamical systems is different in Lagrangian and Hamiltonian approaches whenever the interaction Lagrangian depends on generalised velocities. In almost all cases of physical interest however, velocity-dependent interaction Lagrangians do not couple velocities belonging to different subsystems.
Stokes, Adam, A. Stokes
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Improving collisional growth in Lagrangian cloud models: development and verification of a new splitting algorithm [PDF]
Geoscientific Model Development, 2018 Lagrangian cloud models (LCMs) are increasingly used in the cloud physics community. They not only enable a very detailed representation of cloud microphysics but also lack numerical errors typical for most other models.
J. Schwenkel +4 more
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A Review of CO2 Plume Dispersion Modeling for Application to Offshore Carbon Capture and Storage
Journal of Marine Science and Engineering, 2023 The exponential increase in greenhouse gas emissions necessitates urgent measures to mitigate climate change impacts. Carbon capture and storage (CCS) has emerged as a promising solution, capturing CO2 from industrial processes and storing it underground.
Yong-Hoon Kim, Young-Gyu Park
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A Lagrangian approach for investigating anomalies in the moisture transport during drought episodes
Cuadernos de Investigación Geográfica, 2016 The present work proposes a Lagrangian diagnostic scheme to investigate the anomalous moisture transport before, during, and after the occurrence of drought episodes.
A. Drumond, R. Nieto, L. Gimeno
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A Lagrangian Approach for Multiple Personalized Campaigns [PDF]
IEEE Transactions on Knowledge and Data Engineering, 2008 The multicampaign assignment problem is a campaign model to overcome the multiple-recommendation problem that occurs when conducting several personalized campaigns simultaneously. In this paper, we propose a Lagrangian method for the problem. The original problem space is transformed to another simpler one by introducing Lagrange multipliers, which ...
Yong-Hyuk Kim +2 more
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Photoproduction in an effective Lagrangian approach * [PDF]
Chinese Physics C, 2022 Abstract A gauge-invariant model is constructed for the reaction within a tree-level effective Lagrangian approach to understand the underlying production mechanisms and study the resonance contributions in this reaction. In addition to the t-channel K and
Neng-Chang Wei, Ai-Chao Wang, Fei Huang
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A Lagrangian Duality Approach to Active Learning
Advances in Neural Information Processing Systems 35, 2022 We consider the pool-based active learning problem, where only a subset of the training data is labeled, and the goal is to query a batch of unlabeled samples to be labeled so as to maximally improve model performance. We formulate the problem using constrained learning, where a set of constraints bounds the performance of the model on labeled samples.
Juan Elenter +2 more
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The combined Lagrangian advection method [PDF]
, 2010 We present and test a new hybrid numerical method for simulating layerwise-two-dimensional geophysical flows. The method radically extends the original Contour-Advective Semi-Lagrangian (CASL) algorithm by combining three computational elements for the ...
Fontane, Jérôme +2 more
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