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arXiv 1706.04625math-phhep-thmath.MP
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可积$\mathbb{C}P^{N-1}$西格玛模型中孤子面的性质

Properties of soliton surfaces associated with integrable $\mathbb{C}P^{N-1}$ sigma models

Sanjib Dey, A. M. Grundland

摘要:

研究了定义在二维Riemann球面上具有有限作用泛函的正交秩一Hermitian投影所构造的可积$\mathbb{C}P^{N-1}$西格玛模型的$\mathfrak{su}(N)$值二维孤子曲面的某些性质.本文详细讨论了一维子空间上投影子的几个新性质及其与三个互不相同的浸入公式,即广义Weierstrass,Sym-Tafel和Fokas-Gel'fand的关系。这三个表面之间的显式连接也建立了纯粹的解析描述,它表明,这三个浸入公式实际上对应于由某些特定条件参数化的单个表面。

英文摘要:

We investigate certain properties of $\mathfrak{su}(N)$-valued two-dimensional soliton surfaces associated with the integrable $\mathbb{C}P^{N-1}$ sigma models constructed by the orthogonal rank-one Hermitian projectors, which are defined on the two-dimensional Riemann sphere with finite action functional. Several new properties of the projectors mapping onto one-dimensional subspaces as well as their relations with three mutually different immersion formulas, namely, the generalized Weierstrass, Sym-Tafel and Fokas-Gel'fand have been discussed in detail. Explicit connections among these three surfaces are also established by purely analytical descriptions and, it is demonstrated that the three immersion formulas actually correspond to the single surface parametrized by some specific conditions.

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