Abstract： By selecting non-zero constant as a scaling factor， we design a reduced-order projective synchronization scheme for synchronizing the fourth-order hyper-chaotic L¨u system and the third-orde
Abstract： Foreign exchange option， as afinancial derivative， plays an important role in thefinancial market. It is of great theoretical and practical significance to study the foreign exchange options
Abstract： Linear Algebra is one of the most important mathematical courses for undergraduate students. An overemphasization on memorization of definitions and equations on text books always weakens st
Abstract： This paper discusses the neutrinofield in space. The principle that the neutrinofield can form quantum gravityfield is proved based on the fact that neutrino has concussive energy. The neutr
Abstract： The Seemingly Unrelated Regressions （SUR） model proposed in 1962 by Arnold Zellner has gained a wide acceptability and its practical use is enormous. In this research， two methods of estimat
半世纪来，不知吃了多少场喜酒。从前一家办喜事，整个弄堂都沸腾了。现在的婚宴，步入了五星级酒店，更豪华，更有仪式感。期待明天会更好！ 金秋季节，连续参加了两场婚礼。不同的酒店，相似的程式，隆重的场面，热闹的氛围，充满喜庆仪式感。面对酷炫的婚礼和满桌佳肴美酒，过去年代那些吃喜酒的场景，不断在我脑海闪现—— 记忆中第一次参加婚礼，是在1964年春节。在苏北东台某机械厂工作的舅舅回无锡完婚，母亲带着我
现代研究表明，紫色食物都含有一种叫做“花青素”的物质，花青素是一种强有力的抗氧化剂。多食紫色食物，既有益于身体健康，又能对多种疾病起到预防和辅助治疗作用。常见的紫色食物有： 1.紫菜：紫菜能有效防止血栓形成，降低血黏度和胆固醇;所含的胆碱及钙和铁，能增强记忆、促进骨骼与牙齿的生长，对妇女和儿童贫血有辅助治疗作用;它还含有一定量的甘露醇，可作为治疗水肿的辅助食品;所含的多糖具有明显增强细胞的免疫功
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Corresponding author. Address： Departinent of Mathematics， Neijiang Normal University， Neijiang 641003， China： E-Mail：
[email protected]
Abstract： Research Context： The aim of the study was to use differ-ential equations to model memorization of students based on a given datataking into account forgetfulness.