arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.0702math-phhep-thmath.MPnlin.SI
收藏

特征类与可积系统。一般建筑

Characteristic Classes and Integrable Systems. General Construction

A. Levin, M. Olshanetsky, A. Smirnov, A. Zotov

摘要:

本文研究了椭圆曲线上具有标记点的拓扑非平凡Higgs丛,并构造了相应的可积系统.在一个标记点的情况下,我们称之为修改的Calogero-Moser系统(MCM系统)。它们的相空间与具有自旋的标准CM系统的相空间具有相同的维数,但粒子数较少,自旋变量数较多。全纯丛的拓扑由它们的特征类定义。如果G有一个非平凡的中心,即经典的单连通群,$E_6$和$E_7$,则出现这样的丛。我们定义了G的共形形式CG-GL(N)对于SL(N)的一个类似物,并将特征类与CG-丛的度联系起来。从这些丛,我们构造Lax算子,二次哈密顿算子,定义相空间和泊松结构使用动态r-矩阵。为了描述系统,我们使用李代数中的一个特殊基,它推广了sl(N)的t'Hooft矩阵的基。我们发现,MCM系统包含与某些(不间断)子代数相关的标准CM系统。CM粒子的位形空间是具有非平凡特征类的全纯丛的模空间。

英文摘要:

We consider topologically non-trivial Higgs bundles over elliptic curves with marked points and construct corresponding integrable systems. In the case of one marked point we call them the modified Calogero-Moser systems (MCM systems). Their phase space has the same dimension as the phase space of the standard CM systems with spin, but less number of particles and greater number of spin variables. Topology of the holomorphic bundles are defined by their characteristic classes. Such bundles occur if G has a non-trivial center, i.e. classical simply-connected groups, $E_6$ and $E_7$. We define the conformal version CG of G - an analog of GL(N) for SL(N), and relate the characteristic classes with degrees of CG-bundles. Starting with these bundles we construct Lax operators, quadratic Hamiltonians, define the phase spaces and the Poisson structure using dynamical r-matrices. To describe the systems we use a special basis in the Lie algebras that generalizes the basis of t'Hooft matrices for sl(N). We find that the MCM systems contain the standard CM systems related to some (unbroken) subalgebras. The configuration space of the CM particles is the moduli space of the holomorphic bundles with non-trivial characteristic classes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑