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无视学情:语文教学无言的痛
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作者 章铁英 林志明 《教育教学论坛》 2014年第12期112-113,共2页
新课程改革催生了"学情理论",其根基是"以学生的发展为本",要求教师必须密切关注每一位学生的学情动态。本文着重研究了当前语文教学中教师顾"教"不顾"学"而导致出现的无视学情的情况。
关键词 无视学情 想想学生 看看学生 问问学生
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Generation of Complex Matrices Belonging to Matrix Groups with Controlled Condition Number
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作者 Hanz Martin Cheng 《Journal of Mathematics and System Science》 2013年第3期136-138,共3页
The authors study the generation of matrices with complex entries belonging to some matrix groups, mainly those that are defined by a scalar product space. These matrices have useful applications in quantum mechanical... The authors study the generation of matrices with complex entries belonging to some matrix groups, mainly those that are defined by a scalar product space. These matrices have useful applications in quantum mechanical problems and complex control problems. In this work, the authors try to generate matrices such that: (1) the condition number of these types of matrices is controlled and (2) The algorithm used to generate these matrices preserves their structure. 展开更多
关键词 Matrix groups condition number structure.
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Identifiability and Stability of an Inverse Problem Involving a Fredholm Equation
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作者 Carlos CONCA Rodrigo LECAROS +1 位作者 Jaime H.ORTEGA Lionel ROSIER 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2015年第5期737-762,共26页
The authors study a linear inverse problem with a biological interpretation,which is modelled by a Fredholm integral equation of the first kind, where the kernel is represented by step functions. Based on different as... The authors study a linear inverse problem with a biological interpretation,which is modelled by a Fredholm integral equation of the first kind, where the kernel is represented by step functions. Based on different assumptions, identifiability, stability and reconstruction results are obtained. 展开更多
关键词 Inverse problems Olfactory system Kernel determination Fredholm integral equation Partial differential equations Numerical reconstruction
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