Results 21 to 30 of about 458 (100)
Two-loop self-energy diagrams worked out with NDIM [PDF]
, 1997 In this work we calculate two two-loop massless Feynman integrals pertaining to self-energy diagrams using NDIM (Negative Dimensional Integration Method). We show that the answer we get is 36-fold degenerate.
Schmidt, Alexandre G. M. +1 more
core +3 more sources
A modified Fermi-Walker derivative for inextensible flows of binormal spherical image
Open Physics, 2018 Fermi-Walker derivative and biharmonic particle play an important role in skillful applications. We obtain a new characterization on binormal spherical indicatrix by using the Fermi-Walker derivative and parallelism in space.
Suroğlu Gülden Altay
doaj +1 more source
Continued Fraction as a Discrete Nonlinear Transform
, 1993 The connection between a Taylor series and a continued-fraction involves a nonlinear relation between the Taylor coefficients $\{ a_n \}$ and the continued-fraction coefficients $\{ b_n \}$.
Bender, Carl M., Milton, Kimball A.
core +1 more source
Integrability of Kersten-Krasil'shchik coupled KdV-mKdV equations: singularity analysis and Lax pair
, 2002 The integrability of a coupled KdV-mKdV system is tested by means of singularity analysis. The true Lax pair associated with this system is obtained by the use of prolongation technique.Comment: 9 ...
Ayşe Karasu Kalkanli +3 more
core +1 more source
Galactic Nonlinear Dynamic Model
, 2008 We develop a model for spiral galaxies based on a nonlinear realization of the Newtonian dynamics starting from the momentum and mass conservations in the phase space.
C. A. M. DE MELO +2 more
core +1 more source
New Quasi-Exactly Solvable Sextic Polynomial Potentials [PDF]
, 2005 A Hamiltonian is said to be quasi-exactly solvable (QES) if some of the energy levels and the corresponding eigenfunctions can be calculated exactly and in closed form.
Bender C M +22 more
core +1 more source
Business Strategy and the Environment, Volume 34, Issue 8, Page 10296-10312, December 2025.ABSTRACT With the rapid expansion of digitalization, banks are transitioning from traditional financial intermediaries to proactive agents, increasing operational efficiency and playing a critical role in improving sustainability across multiple industries.
Muhammad Zeshan +5 more
wiley +1 more source
Energy in Yang-Mills on a Riemann Surface
, 2000 Sengupta's lower bound for the Yang-Mills action on smooth connections on a bundle over a Riemann surface generalizes to the space of connections whose action is finite. In this larger space the inequality can always be saturated. The Yang-Mills critical
Bott R. +5 more
core +2 more sources
A Study of the Wave Dynamics for the Reaction‐Diffusion Brusselator System and RKL Equation
Discrete Dynamics in Nature and Society, Volume 2025, Issue 1, 2025.In this article, the reaction‐diffusion Brusselator system and the Radhakrishnan, Kundu, and Laskshmanan (RKL) equation are discussed. The investigation is focused on the solution procedure of the nonlinear evolution equations in chemical and biological processes.
Onur Alp İlhan, Jalil Manafian, Deepali
wiley +1 more source
Entanglement perturbation theory for the elementary excitation in one dimension
, 2010 The entanglement perturbation theory is developed to calculate the excitation spectrum in one dimension. Applied to the spin-$\frac{1}{2}$ antiferromagnetic Heisenberg model, it reproduces the des Cloiseaux-Pearson Bethe ansatz result. As for spin-1, the
Affleck +21 more
core +1 more source