四階半正變系數(shù)常微分系統(tǒng)固結(jié)梁邊值問題正解的存在性
關(guān)鍵詞:變系數(shù);半正問題;拓?fù)涠壤碚?;正解中圖分類號(hào):0175.14 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1674-0033(2025)04-0014-05
Abstract:The boundary value problem of a four order semi-positive variable coefficient ordinary diferential system fora consolidated beam with two-end fixed-support boundary conditions,
∣u(4)(x)+a(x)u(x)=λf1(x,ν(x)), ,x∈(0,1), ∣ν(4)(x)+b(x)ν(x)=λf2(x,u(x)), ∈(0,1), u(0)=u(1)=u'(0)=u'(1)=0, ν(0)=v(1)=v'(0)=v'(1)=0,
it is studied by using the topological degree theory and Schauder's fixed-point theorem,where λ>0 isa parameter, a,b∈C [O,1],and the nonlinear terms are continuous functions and satisfy certain conditions, the existence of positive solutions of the system is explored by constructing operators and proving relevant lemmas.When the nonlinear terms are continuous functions,satisfy the semi-positive assumption fi(x,0)
Key words: variable coefficients; semi-positive problem; topological degree theory; positive solution
四階常微分方程邊值問題是描述在彈性變形下梁狀態(tài)的數(shù)學(xué)模型,也稱彈性梁問題,理想的彈性變形條件對(duì)梁結(jié)構(gòu)前期分析及后期延性調(diào)整起著至關(guān)重要作用。(剩余6514字)
-
-
- 商洛學(xué)院學(xué)報(bào)
- 2025年04期
- 熊果酸與白芷抗氧化面膜的制備及...
- 白靈菇蛋白質(zhì)的分級(jí)提取及其性質(zhì)...
- 四階半正變系數(shù)常微分系統(tǒng)固結(jié)梁...
- R3 上帶有凹凸非線性項(xiàng)的Sc...
- 模糊賦范Riesz空間上序列性...
- 基于變分模態(tài)分解和自適應(yīng)雙閥值...
- 基于改進(jìn)BP網(wǎng)絡(luò)和RBF網(wǎng)絡(luò)識(shí)...
- 基于立體視覺和Kinect相機(jī)...
- 基于Ilumina數(shù)據(jù)的萊茵衣...
- 連翹苷脂質(zhì)體凝膠的制備工藝優(yōu)化...
- 針刺聯(lián)合中頻治療儀對(duì)神經(jīng)根型頸...
- 改良啟項(xiàng)四節(jié)操聯(lián)合項(xiàng)八針和穴位...
- 從高斯定理理解電場線的性質(zhì)...
- 智慧農(nóng)業(yè)專業(yè)實(shí)踐教學(xué)的挑戰(zhàn)與模...
- 基于核心素養(yǎng)的大學(xué)生數(shù)學(xué)審辯式...