可转变 发表于 2025-3-23 11:18:22
http://reply.papertrans.cn/28/2787/278684/278684_11.png现存 发表于 2025-3-23 15:37:26
https://doi.org/10.1007/1-4020-4649-9lving Equation (1). This, of course, is very disappointing. However, it is not necessary, in most applications, to find the solutions of (1) explicitly. For example, let ..(.) and ..(.) denote the populations, at time ., of two species competing amongst themselves for the limited food and living spa消极词汇 发表于 2025-3-23 19:22:06
Applied Mathematical Scienceshttp://image.papertrans.cn/d/image/278684.jpgBABY 发表于 2025-3-24 01:57:15
https://doi.org/10.1007/978-1-4684-9360-3Dirac delta function; Equations; Fourier series; calculus; convolution; difference equation; differential招惹 发表于 2025-3-24 02:49:31
Springer Science+Business Media New York 1978Observe 发表于 2025-3-24 10:27:42
Differential Equations and Their Applications978-1-4684-9360-3Series ISSN 0066-5452 Series E-ISSN 2196-968Xeardrum 发表于 2025-3-24 13:19:07
0066-5452 foremost, it is a rigorous study of ordinary differential equations and can be fully un derstood by anyone who has completed one year of calculus. However, in addition to the traditional applications, it also contains many exciting "real life" problems. These applications are completely self contaiSleep-Paralysis 发表于 2025-3-24 14:57:21
https://doi.org/10.1007/1-4020-4649-9are not really interested in the values of ..(.) and ..(.) at every time .. Rather, we are interested in the qualitative properties of ..(.) and ..(.). Specically, we wish to answer the following questions.颠簸下上 发表于 2025-3-24 19:23:09
Qualitative theory of differential equations,are not really interested in the values of ..(.) and ..(.) at every time .. Rather, we are interested in the qualitative properties of ..(.) and ..(.). Specically, we wish to answer the following questions.ARENA 发表于 2025-3-25 00:22:40
Textbook 19782nd editionit is a rigorous study of ordinary differential equations and can be fully un derstood by anyone who has completed one year of calculus. However, in addition to the traditional applications, it also contains many exciting "real life" problems. These applications are completely self contained. First