We study a Khovanov type homology close to the original Khovanov homology theory from Frobenius system.The homology is an invariant for oriented links up to isotopy by applying a tautological functor on the geometric ...We study a Khovanov type homology close to the original Khovanov homology theory from Frobenius system.The homology is an invariant for oriented links up to isotopy by applying a tautological functor on the geometric complex.The homology has also geometric descriptions by introducing the genus generating operations.We prove that Jones Polynomial is equal to a suitable Euler characteristic of the homology groups.As an application,we compute the homology groups of（2,k）-torus knots for every k ∈ N.展开更多
We derive necessary and sufficient conditions for the existence and an expression of the （anti）reflexive solution with respect to the nontrivial generalized reflection matrix P to the system of complex matrix equati...We derive necessary and sufficient conditions for the existence and an expression of the （anti）reflexive solution with respect to the nontrivial generalized reflection matrix P to the system of complex matrix equations AX = B and XC = D. The explicit solutions of the approximation problem min x∈Ф ｜｜X - E｜｜F was given, where E is a given complex matrix and Ф is the set of all reflexive （or antireflexive） solutions of the system mentioned above, and ｜｜·｜｜ is the Frobenius norm. Furthermore, it was pointed that some results in a recent paper are special cases of this paper.展开更多
基金Supported by NSFC(Grant Nos.11329101 and 11431009)
文摘We study a Khovanov type homology close to the original Khovanov homology theory from Frobenius system.The homology is an invariant for oriented links up to isotopy by applying a tautological functor on the geometric complex.The homology has also geometric descriptions by introducing the genus generating operations.We prove that Jones Polynomial is equal to a suitable Euler characteristic of the homology groups.As an application,we compute the homology groups of（2,k）-torus knots for every k ∈ N.
基金supported by the National Natural Science Foundation of China （Grant No.60672160）
文摘We derive necessary and sufficient conditions for the existence and an expression of the （anti）reflexive solution with respect to the nontrivial generalized reflection matrix P to the system of complex matrix equations AX = B and XC = D. The explicit solutions of the approximation problem min x∈Ф ｜｜X - E｜｜F was given, where E is a given complex matrix and Ф is the set of all reflexive （or antireflexive） solutions of the system mentioned above, and ｜｜·｜｜ is the Frobenius norm. Furthermore, it was pointed that some results in a recent paper are special cases of this paper.
文摘宽度学习系统(broad learning system,BLS)因其特征提取能力强、计算效率高而被广泛应用于众多领域.然而,目前BLS主要用于单输出回归,当BLS存在多个输出时,BLS无法有效发掘多个输出权重之间的相关性,会导致模型预测性能的下降.鉴于此,通过Frobenius和L_(2,1)矩阵范数的联合约束,提出多输出宽度学习系统(multi-output broad learning system,MOBLS).首先,在原有BLS的基础上构建新的目标函数,将L2损失函数替换为L_(2,1)形式,L_(2)正则化项替换为Frobenius和L_(2,1)两项;然后,利用交替方向乘子法(alternating direction method of multipliers,ADMM)对新目标函数BLS的输出权重优化求解.利用11个公共数据集和1个实际过程数据集验证了所提系统的有效性.
