排序方式: 共有8条查询结果,搜索用时 15 毫秒
1
1.
Donu Arapura 《Advances in Mathematics》2006,207(2):762-781
Given two smooth projective varieties X and Y, X is defined to motivate Y if the motive of Y is contained in the tensor category generated by X. Some techniques are given for checking this condition. It is shown that in a number of cases moduli spaces of sheaves over curves or surfaces are motivated by the underlying curve or surface. This is used to check the Hodge and related conjectures for some of these examples. 相似文献
2.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(18):5159-5163
The structural transformation of supramolecular nanostructures with constitutional diversity and adaptability by dynamic coordination chemistry would be of fundamental importance for potential applications in molecular switching devices. The role of halogen doping in the formation of elementary metal–organic motifs on surfaces has not been reported. Now, the 9‐ethylguanine molecule (G) and Ni atom, as a model system, are used for the structural transformation and stabilization of metal–organic motifs induced by iodine doping on Au(111). The iodine atoms are homogeneously located at particular hydrogen‐rich locations enclosed by G molecules by electrostatic interactions, which would be the key for such an unexpected stabilizing effect. The generality and robustness of this approach are demonstrated in different metal–organic systems (G/Fe) and also by chlorine and bromine. 相似文献
3.
4.
We define relative motives in the sense of André. After associating a complex in the derived category of motives to an algebraic
stack we study this complex in the case of the moduli of G-bundles varying over the moduli of curves. 相似文献
5.
6.
7.
给出了任意流场中颗粒运动方程的无因次和线性微分方程形式.估计了颗粒运动方程中的一些相关项.借助于一些数学推导和处理,求得了比线性颗粒运动方程的通解. 相似文献
8.
1