凸度量空间中渐近拟非扩张映象的Ishikawa型迭代序列的收敛性

给出了凸度量空间中渐近拟非扩张映象的Ishikawa型迭代序列收敛于不动点的充要条件,所得结果推广、改进和包含了刘启厚[1]等人的最新成果.     

凸度量空间中渐近拟非扩张映象新的带误差的Ishikawa迭代逼近

在凸度量空间中，利用新的解析法，征明了由集合序列{On}产生的在多值渐近拟非扩张映象下的新的带误差的lshikawa迭代序列的收敛性。     

一致凸Banach空间中渐近非扩张映射的收敛定理

在一致凸Banach(巴拿赫)空间中研究了渐近非扩张映射的带误差的Ishikawa迭代序列的收敛性。结果推广了原来的定理。     

Deformation characteristics and influential factors for the giant Jinnosuke-dani landslide in the Haku-san Mountain area, Japan

The Jinnosuke-dani landslide is a giant landslide 2,000 m long and 500 m wide in the Haku-san Mountain area, Japan. It was also the first landslide to be designated as a “Landslide Prevention Area” according to the “Japan Landslide Prevention Law.” This landslide consists of alternating layers of sandstone and shale in the Tedori Formation, which was deposited from the Jurassic period to the Early Cretaceous. Based on deformation monitoring results for more than 7 years, the landslide is divided into upper and lower blocks. The upper block has moved at a speed of 80 to 170 mm/year, while the lower block has moved more slowly (3 to 15 mm/year). Monitoring data show that the variation of the groundwater level has a great influence on the landslide movement. The deteriorating effect of the weathering of the alternating layers of sandstone and shale on the landslide deformation has been confirmed by borehole exploration and monitoring.     

具有误差的渐进拟非扩张映象的迭代序列的收敛性

在凸度量空间中,对渐进拟非扩张映象T证明了带混合误差的渐进Ishikawa型迭代序列收敛到不动点的一些充分必要条件,其中T不必是连续的.将文献[1]中的Banach空间上的结论推广到了完备凸度量空间.     

一致渐近伪压缩映象的Ishikawa迭代过程的收敛性

用良好的不等式和分析技术,在Banach空间中给出了一致渐近伪压缩映象的具有修正误差的Ishikawa 迭代过程的收敛性的充分必要条件,改进、推广并包含了属于张石生、刘启厚等人的最近的结论.     

夏季黄海南部沿海表层流刺网渔获物组成分析

结合银鲳和小黄鱼流刺网网目选择性试验,对夏季黄海南部沿海三层表层流刺网渔获物组成进行了调查分析.总共鉴定出渔获品种25种,其中优势种为梭子蟹(Portunus triuberbuculatus)、灰鲳(Stomateoidesnozawae Ishikawa)和银鲳(Stromatecoides argenteus),分别占总渔获量的59.2%,21.5%和11%,灰鲳体长分布范围为17～30 cm,优势体长范围为21～24 cm,占71.6%;银鲳体长分布范围为13～23 cm,优势体长范围为15～21 cm,占95.8%.数据分析表明,三重流刺网作业网具选择性较差,渔具兼捕种类多,捕获量大,占总渔获量的66.5%;渔获的灰鲳和银鲳处于生长型捕捞期,不利于资源的可持续利用,建议适当改良渔具,避免对其资源造成过度破坏.     

一致拟Lipschitzian映象的具有混合误差的Ishikawa迭代序列的收敛性

在完备凸度量空间中，对一致拟Lipschitzian映象T证明了带混合误差的渐进Ishikawa型迭代序列收敛．到不动点的一些充分必要条件。其中T不必是连续的。