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新建本科院校本科《高等数学》学习状况调查报告 总被引:2,自引:1,他引:1
通过对新建本科院校本科《高等数学》学习状况的问卷调查,弄清本科学生学习《高等数学》的基本状况,分析出造成《高等数学》学习困难的主要原因——自我效能感低、不良的非智力因素,并由此得出对教学的启示. 相似文献
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《数学的实践与认识》2019,(21)
大学生创业失败经历对于后续创业意愿的影响十分关键.通过214份具有创业失败经历的大学生创业者的问卷调查数据,运用结构方程构建检验创业失败归因对大学生后续创业意愿的影响机制.结果表明,创业失败归因的内部性程度、可控性程度对失败学习方式和后续创业意愿有显著正向影响,利用式学习方式对后续创业意愿也有显著正向影响,但探索式学习方式对后续创业意愿有显著负向影响.创业失败学习方式在创业失败归因与后续创业意愿之间起中介作用,风险容忍力在失败学习方式与后续创业意愿之间起调节作用. 相似文献
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高等数学是工科学生必修的重要基础课 ,通过这门课的学习 ,对增长他们的知识 ,提高他们的能力 ,培养他们的数学素质都有重要和深远的意义 .改进高等数学课堂教学内容与方法 ,提高课堂教学效率 ,是这门课教学改革的关键 ,我们在机械设计、无机非金属材料两个专业共六个班进行了高等数学课程教学改革 ,取得了较好的效果 ,下面谈谈我们的做法与体会 .1 精心选用教材一门课程教学内容改革的成败 ,教材是至关重要的因素之一 .为此 ,我们在组织教师多次讨论和认真调研的基础上 ,选用了面向 2 1世纪高等数学教材 :《微积分》(同济大学应用数学系编… 相似文献
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浅谈高等数学教学实践 总被引:7,自引:1,他引:6
培养学生分析解决问外的能力和培养学生自学能力,是高等数学教学的基本任务之一.本文结合从事高等数学教学的实践,阐述如何培养提高大学生的分析问题、解决问题的能力及自学能力,以及如何用科学家的坚忍不拔的精神激励鞭策大学生学习. 相似文献
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认识高等数学阅读能力的重要性、激发大学生对高数学阅读的兴趣、提供数学阅读的具体方法是培养高等数学阅读能力的措施.其中,数学阅读的具体方法有:带有问题阅读、督促学生作读书笔记、个别指导、组织课堂讨论和经验交流、及时小结、合理评价等.高等数学教师应该努力探寻提高大学生数学阅读能力的有效方法. 相似文献
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关于循环子半群的结构与数量问题及拟环的特征与结构 总被引:1,自引:0,他引:1
朱平 《纯粹数学与应用数学》2002,18(3):239-243,249
彻底解决了所有循环半群及其子群的结构和数量问题,并讨论了拟群分解问题,同时,对群论基本定理作了部分推广,并给出了定理的另一部分不可推广的反例,最后,建立了一类特殊环-拟环。 相似文献
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Hermann König Vitali Milman 《Proceedings of the Steklov Institute of Mathematics》2013,280(1):191-207
We study rigidity and stability properties of the Leibniz and chain rule operator equations. We describe which non-degenerate operators V, T 1, T 2,A: C k (?) → C(?) satisfy equations of the generalized Leibniz and chain rule type for f, g ∈ C k (?), namely, V (f · g) = (T 1 f) · g + f · (T 2 g) for k = 1, V (f · g) = (T 1 f) · g + f · (T 2 g) + (Af) · (Ag) for k = 2, and V (f ○ g) = (T 1 f) ○ g · (T 2 g) for k = 1. Moreover, for multiplicative maps A, we consider a more general version of the first equation, V (f · g) = (T 1 f) · (Ag) + (Af) · (T 2 g) for k = 1. In all these cases, we completely determine all solutions. It turns out that, in any of the equations, the operators V, T 1 and T 2 must be essentially equal. We also consider perturbations of the chain and the Leibniz rule, T (f ○ g) = Tf ○ g · Tg + B(f ○ g, g) and T (f · g) = Tf · g + f · Tg + B(f, g), and show under suitable conditions on B in the first case that B = 0 and in the second case that the solution is a perturbation of the solution of the standard Leibniz rule equation. 相似文献
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We find topological models for the tiling dynamical systems corresponding to the chair and table rep-tiles. 相似文献
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《Communications in Nonlinear Science & Numerical Simulation》2008,13(7):1264-1271
An algebraic system is constructed from which establishes two isospectral problems. By solving the zero curvature equations, two resulting integrable couplings of the Li hierarchy and Tu hierarchy are obtained, respectively. By making use of the quadratic-form identity, the Hamiltonian structures of the above integrable couplings are generated, which are Liouville integrable. 相似文献
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The correspondence in two-dimensional elasticity between the stress fields of cavities and rigid inclusions has been obtained by Dundurs [1] and Markenscoff [3]. It was shown that if the limit of the stress of the inclusion boundary-value problem, which depends on the elastic constants, exists when the Poisson's ratio v tends to 1, then this solves the traction boundary-value problem for the cavity problem since it satisfies equilibrium and boundary conditions, and, by the uniqueness theorem, exists and is unique. In three dimensions the solution of the traction boundary-value problem of elasticity does depend on Poisson's ratio since the Beltrami-Mitchell compatability conditions for the stress depend on Poisson's ratio. So the similar argument for the correspondence between cavities and rigid inclusions cannot in principle be made. However, the Beltrami-Mitchell compatability conditions are independent of v if the dilatation is a constant or a linear function of the position. In this case we can show that the same result goes through for the correspondence. In order to investigate the behavior of the solutions in the vicinity of v = 1, we use some results obtained for the Cosserat spectrum by Mikhlin [4], Maz'ya and Mikhlin [3], see also [6]. The existence of the limit for 2D and 3D when v tends to 1 is proved on the basis of the fact that the eigenvalue ω = — 1 of the Cosserat spectrum is isolated. 相似文献
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We study the (2+1)-dimensional model proposed by Kadomtsev and Petviashvili (KP) to describe slowly varying nonlinear waves in a dispersive medium. Applying an appropriate Lie transformation and following the method introduced by Tajiri et al., the KP equation is reduced to a one-dimensional equation, that is, to a certain version of the Boussinesq equation (BqE). Then, we solve the BqE by the Hirota method, and finally we use the inverse transformation in order to obtain de KP solutions. We Analyze some remarkable properties of the solutions found in this work. 相似文献