排序方式: 共有42条查询结果,搜索用时 453 毫秒
1.
Hu Duo-Duo Gao Qian Dai Jing-Cheng Cui Ru Li Yuan-Bo Li Yuan-Ming Zhou Xiao-Guo Bian Kang-Jie Wu Bing-Bing Zhang Kai-Fan Wang Xi-Sheng Li Yan 《中国科学:化学(英文版)》2022,65(4):753-761
Science China Chemistry - A light-induced, nickel-catalyzed three-component arylsulfonation of 1,3-enynes in the absence of photocatalyst is reported. This methodology exhibited mild conditions,... 相似文献
2.
The effective action of chiral QCD2 was studied in
two-dimensional non-commutative space-time by using path integral
approach. It is shown that vector boson has a mass generation and
the effective Lagrangian contains a term corresponding to a
Wess-Zumino-Witten-like term. 相似文献
3.
We give some general results concerning solutions of reflection equation associated with the Zn symmetry Belavin model. The complete solution for the eight-vertex model is obtained. 相似文献
4.
We express the vacuum expectation value of the SU(3)k parafermion fields by that of two bosons and SU(3)k current algebra. When k = 1,2,3, the SU(3)k current algebra becomes an inner product of a unitary representation, and T(z), W(3)(z) are equivalent to "quasiself-adjoint" operators in this represen tation. 相似文献
5.
We construct a class of integrable generalization of Toda
mechanics with long-range interactions. These systems are
associated with the loop algebras L(Cr) and L(Dr) in the sense that their Lax matrices can be realized in
terms of the c=0 representations of the affine Lie algebras
C(1)r and
D(1)r and the interactions pattern involved
bears the typical characters of the corresponding root systems. We
present the equations of motion and the Hamiltonian structure.
These generalized systems can be identified unambiguously by
specifying the underlying loop algebra together with an ordered
pair of integers (n,m). It turns out that different systems
associated with the same underlying loop algebra but with
different pairs of integers
(n1,m1) and (n2,m2) with
n2<n1 and
m2<m1 can be related by a nested Hamiltonian
reduction procedure. For all nontrivial generalizations, the extra
coordinates besides the standard Toda variables are Poisson
non-commute, and when either $n$ or
m≥3, the Poisson
structure for the extra coordinate variables becomes some Lie
algebra (i.e. the extra variables appear linearly on the
right-hand side of the Poisson brackets). In the quantum case, such
generalizations will become systems with noncommutative variables
without spoiling the integrability. 相似文献
6.
The integrability and the TST transformation of the bosonic string on AdS3× S^3 are studied. The Lax connection for gauge fixed theory is constructed and proved to be fiat. 相似文献
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从Rahmfeld和Rajaraman构造的在AdS3×S3背景中具有κ对称的GS弦的作用量出发, 推导出AdS3×S3弦的运动方程, 然后利用连续的扭曲对偶变换构造了带有自由参数λ的平联络, 利用这些平联络可进一步得到无穷多守恒量, 说明此系统是可积的. 相似文献
9.
From the κ symmetric action of ⅡB string in AdS2 × S2 background given by Zhou, we derive the equations of motion. By using the twisted dual transformation which was introduced by Hou, we construct the flat currents, conserving non-local charge with one free parameter, for the superstring in AdS2 × S2. 相似文献
10.
In this paper,we present the realization of unitary transformation that is corresponding to symplectic transformation of coordinate on noncommunicative R2N,and give out the transformation of wave function caused by the unitary transformation,i,e.,it is the matrix unit of unitary transformation. 相似文献