In this paper we analyse generalizations of double-bracket flows to more complex isospectral equations of the form Y ′ = [Y , [G(Y −N ), Y ]], t ≥ 0, over real symmetric matrices. The new flows possess a nontrivial equilibrium structure which we explore. We discuss the stability of these equilibria. We also discuss the relationship of the new flows to the structure of (convex) Horn–Schur polyto...

In this study, the generalized coupled nonlinear Schrödinger–KdV (NLS–KdV) system is investigated to obtain new optical soliton solutions. This appears as a model for reciprocity between long and short waves in various physical settings. Different kinds of solutions including dark, bright, combined dark-bright, singular are obtained using two effective methods namely, extended sinh–Gordon equat...

In this study, the dispersal caused by transverse Poisson’s effect in a magneto-electro-elastic (MEE) circular rod is taken into consideration using nonlinear longitudinal wave equation (LWE), mathematical physics problem. Using generalized exp-function method, we investigate families of solitary solutions one-dimensional LWE. computer program Wolfram Mathematica 10, these new exact and LWE are...

Sinh học lớp 10 là nền tảng để phát triển năng lực cho sinh. Theo xu hướng tập hiện nay, sinh động, sáng tạo trong tập, còn giáo viên người cố vấn, dẫn dắt tư duy; thì phương pháp nghiên cứu khoa một vô cùng thích hợp tích vào bài dạy. Bài báo này sử dụng lý thuyết và tham vấn chuyên gia khảo, thu thập phân nội dung phần vi vật virus nhằm thiết kế học, từ đó đề xuất quy trình các ví dụ minh họa...

We derive a zero-curvature formalism for a combined sine-Gordon (sG) and modi-ed Korteweg{de Vries (mKdV) equation which yields a local sGmKdV hierarchy. In complete analogy to other completely integrable hierarchies of soliton equations, such as the KdV, AKNS, and Toda hierarchies, the sGmKdV hierarchy is recursively constructed by means of a fundamental polynomial formalism involving a spectr...

We embed the geometries of generalized $\lambda$-deformations into framework Double Field Theory.

A new approach for non zero chemical potential simulations is tested in the Gross-Neveu model for infinite flavor number, where the critical line is reconstructed in a large µ/T interval. A comparison with results from standard imaginary chemical potential approach as well as first results for N f = 4 QCD are presented. Recently we proposed a new method for simulate systems at non zero chemical...