نتایج جستجو برای: mathematics
تعداد نتایج: 180451 فیلتر نتایج به سال:
در این یادداشت با کمک پایگاه داده mathscinet به عنوان نسخه الکترونیکی mathematical reviews (از انتشارات انجمن ریاضی امریکا) به همراه نسخه الکترونیکی zentralblatt math (از انتشارات انجمن ریاضی اروپا ) که بزرگترین پایگاههای نقد، مرور و چکیده نگاری مقالات ریاضی را در جهان تشکیل می دهند به بررسی وضعیت مجلات ریاضی ایران می پردازیم و چند پیشنهاد برای بهبود کیفی آنها ارائه می دهیم. در این یادداشت با ک...
one may find out the application of mathematics in the areas of ecology, biology, environmental sciences etc. mathematics is particulary used in the problem of predator-prey known as lotka-volterra predator-prey equations. indeed, differential equations is employed very much in many areas of other sciences. however, most of natural problems involve some unknown functions...
A Hyers-Ulam-Rassias stability result for functional equations in Intuitionistic Fuzzy Banach spaces
Hyers-Ulam-Rassias stability have been studied in the contexts of several areas of mathematics. The concept of fuzziness and its extensions have been introduced to almost all branches of mathematics in recent times.Here we define the cubic functional equation in 2-variables and establish that Hyers-Ulam-Rassias stability holds for such equations in intuitionistic fuzzy Banach spaces.
The control problem and Dynamic programming is a powerful tool in economics and management. We review the dynamic programming problem from its beginning up to its present stages. A problem which was involved in physics and mathematics in I 7” century led to a branch of mathematics called calculus of variation which was used in economic, and management at the end of the first quarter of the 20” ...
چکیده ندارد.
The present study is part of a bigger research project and its purpose was to investigate the influencing factors on integrating professional learning of secondary mathematics teachers with the ways in which they analyze, interpret and make decisions regarding their teaching. For the fine-grained analysis of the first layer of data, phenomenography method was used. Nine teachers were interviewe...
We have first demonstrated that Debreu’s view regarding the publication of The Theory of Games and Economic Behavior by von Neumann and Morgenstern in 1944 as the birth of modern mathematical economics is not convincing. In this paper, we have proposed the hypothesis that the coordinated research programs in the 1930’s, initiated by the Econometric Society and the Cowles Commission for Research...
چکیده ندارد.
Background and aim: Due to the importance of keywords in the field of research and scientometrics, the keywords used in scientific outputs of mathematics education specialists were investigated in this study to determine the scope of their research. Material and methods: This cross-sectional study was conducted on the Persian scientific papers published by mathematics education specialists who ...
So far, many scholars have spoken of mathematical and architectural mergers. Different perspectives in this regard suggest that there are two general approaches paraphrastic and historians in most of these studies. But what has not been said about this aspect is common mental practices in mathematical science and architecture knowledge that affects the work of mathematicians and past architects...
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