论文标题
准综合KDV型号,无限数量的异常费用和索利顿碰撞的塔楼
Quasi-integrable KdV models, towers of infinite number of anomalous charges and soliton collisions
论文作者
论文摘要
我们通过分析和数值方法发现了无限数量的渐近保守电荷的新塔,用于Korteweg-De Vries方程(KDV)的变形。分析表明,标准KDV还表现出一些无限数量的异常电荷塔,并且其相关的异常因$ n- $ soliton解决方案而消失。 KDV模型的某些变形是通过riccati-type伪电位方法进行的,并使用变形模型的线性公式提供了无限数量的确切非本地保护定律。 In order to check the degrees of modifications of the charges around the soliton interaction regions, we compute numerically some representative anomalies, associated to the lowest order quasi-conservation laws, depending on the deformation parameters $\{ε_1, ε_2\}$, which include the standard KdV ($ε_1=ε_2=0$), the regularized long-wave (RLW) ($ε_1= 1,ε_2= 0 $),修改的正规化长波(MRLW)($ε_1=ε_2= 1 $)和KDV-RLW(KDV-BBM)type($ε_2= 0,\ε_2= 0,\,\,\,ε\ seq \ neq \ neq \ neq \ {0,1 \ \ \ \} $)公式。我们的数值模拟显示了针对各种幅度和相对速度的$ \ {ε_1,ε_2\} $的两个元素的弹性散射。在非线性科学的几个领域,KDV型方程在$ ADS_ {3} $,Bose-Einstein Condense,超导性,超导性和Soliton Gas and Soliton Gas and Trurmuse in in Plicid Dynamics中发现了相关的应用。
We found, through analytical and numerical methods, new towers of infinite number of asymptotically conserved charges for deformations of the Korteweg-de Vries equation (KdV). It is shown analytically that the standard KdV also exhibits some towers of infinite number of anomalous charges, and that their relevant anomalies vanish for $N-$soliton solution. Some deformations of the KdV model are performed through the Riccati-type pseudo-potential approach, and infinite number of exact non-local conservation laws is provided using a linear formulation of the deformed model. In order to check the degrees of modifications of the charges around the soliton interaction regions, we compute numerically some representative anomalies, associated to the lowest order quasi-conservation laws, depending on the deformation parameters $\{ε_1, ε_2\}$, which include the standard KdV ($ε_1=ε_2=0$), the regularized long-wave (RLW) ($ε_1=1,ε_2=0$), the modified regularized long-wave (mRLW) ($ε_1=ε_2=1$) and the KdV-RLW (KdV-BBM) type ($ε_2=0,\,ε\neq \{0,1\}$) equations, respectively. Our numerical simulations show the elastic scattering of two and three solitons for a wide range of values of the set $\{ε_1, ε_2\}$, for a variety of amplitudes and relative velocities. The KdV-type equations are quite ubiquitous in several areas of non-linear science, and they find relevant applications in the study of General Relativity on $AdS_{3}$, Bose-Einstein condensates, superconductivity and soliton gas and turbulence in fluid dynamics.