侧涂修改带

Tombow公司的MONO MEGA修改带是该公司的最新产品。该修改带为0.42厘米宽、192米长。与以往的MONO产品一样拥有着卓越的性能。它采用侧面出带的方式。

Banach空间中带误差修改的Mann迭代和Ishikawa迭代收敛的等价性

在任意实Banach空间中研究了带误差修改的Mann迭代和Ishikawa迭代收敛的等价性问题.

Banach空间中几乎渐近非扩张型映象的不动点的迭代逼近

在Banach空间中引入了一类新的几乎渐近非扩张型映象,概括了Banach空间中若干熟知的非线性的Lipschitz映象类与非Lipschitz映象类成特例;例如,熟知的非扩张映象类,渐近非扩张映象类与渐近非扩张型映象类· 考虑了用于逼近几乎渐近非扩张型映象不动点的带误差的修改了的Ishikawa迭代序列的收敛性问题· 关于Banach空间范数的S.S.Chang的不等式与H.K.Xu的不等式皆被用于做精确不动点与近似不动点间的误差估计· 而且,张石生教授用于做带误差的修改了的Ishikawa迭代序列收敛性分析的方法(应用数学和力学,2001,22(1):23—31)被推广到几乎渐近非扩张型映象的情况· 给出了用于求一致凸Banach空间中几乎渐近非扩张型映象不动点的带误差的修改了的Ishikawa迭代序列的新的收敛判据· 并且,由该判据,立即得到了此类映象的带误差的修改了的Mann迭代序列的新的收敛判据· 上述结果统一。

Banach空间中带误差的修改的Ishikawa迭代程序

本文研究在任意的实Banach空间中用带误差的修改的Ishikawa迭代序列来逼近一致Lipschitz的渐近伪压缩映象的不动点的问题.在去掉限制limn→∞βn=0之下,证明了张石生教授的结果(见文[1])仍真.另一方面,也把他的结果推广到了带误差的修改的Ishikawa迭代序列的情形.

Banach空间中带误差修改的不动点迭代逼近

对Banach空间中一致L-Lipschitz映射带误差修改的Ishikawa迭代序列和带误差的修改的Mann迭代序列强收敛的充要条件进行了研究,所得结果改进和推广了最近文献中的一些相应结果.

Banach空间中渐近φ-伪压缩映像的Ishikawa迭代过程

在任意Banach空间中研究了用修改的Ishikawa迭代序列与修改的Mann迭代序列来逼近一致Lips-chitz的渐近φ-伪压缩映像的不动点的强收敛问题.

渐近伪压缩映象不动点的迭代逼近

设C是实Banach空间E的非空凸子集,T:C→C是具有不动点p的一致L-Lipschitz的渐近伪压缩映象,{xn}是带误差的修改的Ishikawa迭代序列,在存在严格增加函数:[0,∞)→[0,∞),ф(0)=0,使得〈Tnxn+1-p,j(xn+1-p)〉≤kn‖xn+1-p‖2-ф(‖xn+1-p‖)■n≥0的条件下,对参数作了一些限制,证明了带误差的修改的Ishikawa迭代序列强收敛于T的不动点p.

Banach空间中Φ-半压缩型算子不动点的迭代逼近

在一般的 Banach空间中讨论了Φ -强拟增生算子方程的解和Φ -半压缩型算子不动点的迭代逼近问题 ,算子无 Lipschitz假设或有界性要求 ,证明简捷 ,得到的结果统一、改进和推广了文 [1 - 1 0 ]中的相应结果 .

凸度量空间内广义渐近拟非扩张映射不动点的迭代

在凸度量空间中,引入一类比渐近拟非扩张映射更加广泛的广义渐近拟非扩张型映射,并给出带误差修改的Ishikawa迭代序列收敛于广义渐近拟非扩张型映射不动点的充要条件:设X是一个完备凸度量空间,T∶X→X是一个广义渐近拟非扩张型映射,其渐近系数kn满足∑∞n=1kn<+∞,并且F(T)非空。假定{xn}n∞=1是带误差修改的Ishikawa迭代序列,在对参数的一定限制下,{xn}n∞=1收敛于T的不动点,当且仅当lim infn→∞d(xn,F(T))=0。

Analyzing the influences of two types of El Nino on Tropical Cyclone Genesis with a modified genesis potential index

To understand the impacts of large-scale circulation during the evolution of E1 Nifio cycle on tropical cyclones （TC） is important and useful for TC forecast. Based on best-track data from the Joint Typhoon Warning Center and reanalysis data from National Centers for Environmental Prediction for the period 1975- 2014, we investigated the influences of two types of E1 Nifio, the eastern Pacific E1 Nifio （EP-E1 Nifio） and central Pacific E1 Nifio （CP-E1 Nifio）, on global TC genesis. We also examined how various environmental factors contribute to these influences using a modified genesis potential index （MGPI）. The composites reproduced for two types of E1 Nifio, from their developing to decaying phases, were able to qualitatively replicate observed cyclogenesis in several basins except for the Arabian Sea. Certain factors of MGPI with more influence than others in various regions are identified. Over the western North Pacific, five variables were all important in the two E1Nifio types during developing summer （July-August-September） and fall （October- November-December）, and decaying spring （April-May-June） and summer. In the eastern Pacific, vertical shear and relative vorticity are the crucial factors for the two types of El Nifio during developing and decaying summers. In the Atlantic, vertical shear, potential intensity and relative humidity are important for the opposite variation of EP- and CP-EI Nifios during decaying summers. In the Southern Hemisphere, the five variables have varying contributions to TC genesis variation during peak season （January-February-March） for the two types of E1 Nifio. In the Bay of Bengal, relative vorticity, humidity and omega may be responsible for clearly reduced TC genesis during developing fall for the two types and slightly suppressed TC cyclogenesis during EP-E1 Nifio decaying spring. In the Arabian Sea, the EP-E1 Nifio generates a slightly positive anomaly of TC genesis during developing falls and decaying springs, but the MGPI failed to capture this variation.

一致L-Lipschitz的渐近拟伪压缩型映象迭代收敛的充要条件

设E是任意的实Banach空间,C是E的非空凸子集(C可以是E的无界子集),T:C→C是一致L-Lipschitz的渐近拟伪压缩型映象,在对参数的一些限制条件下,该文给出了带误差的修改的Ishikawa迭代序列强收敛于T的不动点的充要条件.