Signature defects of cusps and values of L-functions
Signature defects of cusps and values of L-functions
复制标题
尖点的特征缺陷和 L 函数值
DOI：
10.2307/2007088
复制
发表时间：
1984
期刊：
影响因子：
--
通讯作者：
I. M. S. E. Invariants
中科院分区：
文献类型：
--
作者：
M. Atiyah;H. Donnelly;I. M. S. E. Invariants
该活塞结构包括具有大量圆周槽的主体，每个圆周槽容纳活塞环，所述环的径向外部以与活塞间隔开的关系垂直延伸，以实际上包括基本连续的气缸壁接合套筒，从而减少活塞本身与气缸壁的接触，环的槽接合部分与槽的底部间隔开，以接收用于缓冲环并允许活塞膨胀的油。
The piston structure comprises a body having a substantial number of circumferential grooves each receiving a piston ring, the radially outer portions of said rings extending vertically in spaced relation to the piston to comprise, in effect, a substantially continuous cylinder wall-engaging sleeve, thus reducing contact of the piston itself with the cylinder wall, groove engaging portions of the rings spaced from the bottoms of the grooves to receive oil for cushioning the rings and permitting expansion of the piston.