Results 31 to 40 of about 11,252 (154)

Hopf algebra structures in particle physics

, 2003
In the recent years, Hopf algebras have been introduced to describe certain combinatorial properties of quantum field theories. I will give a basic introduction to these algebras and review some occurrences in particle physics.Comment: 6 pages, talk ...
Weinzierl, Stefan
core   +1 more source

A Multivariate Mixed‐Effects Regression Framework for Ground Motion Modeling: Integrating Parametric and Machine Learning Approaches

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Multivariate ground motion models (GMMs) that capture the correlation between different intensity measures (IMs) are essential for seismic risk assessment. Conventional GMMs are often developed using a two‐stage approach, where separate univariate models with predefined functional forms are fitted first, and correlation is addressed in a ...
Sayed Mohammad Sajad Hussaini, Shaghayegh Karimzadeh, Paulo B. Lourenço   +2 more
wiley   +1 more source

Birkhoff type decompositions and the Baker-Campbell-Hausdorff recursion

, 2006
We describe a unification of several apparently unrelated factorizations arisen from quantum field theory, vertex operator algebras, combinatorics and numerical methods in differential equations.
A. Connes, A. Connes, A. Connes, A. Polishchuk, A. Zanna, A.A. Belavin, C. Reutenauer, D. Kreimer, D. Kreimer, D. Kreimer, Dominique Manchon, F. Spitzer, F.V. Atkinson, G. Baxter, H. Figueroa, H.Z. Munthe-Kaas, J.-L. Loday, J.C. Collins, J.F.C. Kingman, J.G. Wendel, K. Barron, K. Ebrahimi-Fard, K. Ebrahimi-Fard, K. Ebrahimi-Fard, K. Ebrahimi-Fard, K. Hepp, Kurusch Ebrahimi-Fard, Li Guo, M. Aguiar, M. Aguiar, M.A. Semenov-Tian-Shansky, N.N. Bogoliubov, O. Babelon, P. Cartier, V.S. Varadarajan, W. Magnus, W. Zimmermann   +36 more
core   +5 more sources

Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users

Laser &Photonics Reviews, EarlyView.
We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley   +1 more source

Analytical and Numerical Soliton Solutions of the Shynaray II‐A Equation Using the G′G,1G$$ \left(\frac{G^{\prime }}{G},\frac{1}{G}\right) $$‐Expansion Method and Regularization‐Based Neural Networks

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Nonlinear differential equations play a fundamental role in modeling complex physical phenomena across solid‐state physics, hydrodynamics, plasma physics, nonlinear optics, and biological systems. This study focuses on the Shynaray II‐A equation, a relatively less‐explored parametric nonlinear partial differential equation that describes ...
Aamir Farooq, H. W. A. Riaz, Sadique Rehman, M. Mamun Miah, Wen Xiu Ma   +4 more
wiley   +1 more source

Algebraic and combinatorial aspects of group-based models

, 2013
Phylogenetische algebraische Geometrie beschäftigt sich mit algebraischen Varietäten die mit phylogenetischen Modellen assoziiert sind. In dieser Dissertation werden Gitterpolytope und affine Halbgruppen untersucht, die mit torischen Varietäten von gruppenbasierten phylogenetischen Modellen korrespondieren.
openaire   +1 more source

Combinatorial Representation Theory

, 1996
We attempt to survey the field of combinatorial representation theory, describe the main results and main questions and give an update of its current status.
Barcelo, Hélène, Ram, Arun
core   +1 more source

Mathematical Analysis and Simulations of a Cancer Model With Interleukins and Delayed Immunotherapy

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A new system of delayed differential equations for tumor‐immune system interactions is proposed and studied. The system describes the interactions between tumor cells and the immune system at the most aggressive phase of cancer, where tumor cells have developed mechanisms from earlier stages to evade immune responses.
Laid Boudjellal, Ana Jacinta Soares, Maria Joana Torres   +2 more
wiley   +1 more source

Polyvinylidene Fluoride: Reaction Engineering and Applications

Macromolecular Reaction Engineering, EarlyView.
An updated review on polyvinylidene fluoride (PVDF) is presented in this work. Its properties, important areas of application and different methods of production are described, with particular focus on emulsion polymerization, covering the latest advances in formulations and modeling studies.
Burak Hanamirian, Giuseppe Storti, Mattia Sponchioni   +2 more
wiley   +1 more source

Uncertainty, Sensitivity, and Efficiency Analysis of a Hybrid Piezoelectric–Electromagnetic Energy Harvester

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley   +1 more source