Browsing by Subject "Boundary value problems -- Research."
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Item Uniqueness implies uniqueness and existence for nonlocal boundary value problems for fourth order differential equations.(2006-07-07T21:11:00Z) Ma, Ding.; Henderson, Johnny.; Mathematics.; Baylor University. Dept. of Mathematics.In this dissertation, we are concerned with uniqueness and existence of solutions of certain types of boundary value problems for fourth order differential equations. In particular, we deal with uniqueness implies uniqueness and uniqueness implies existence questions for solutions of the fourth order ordinary differential equation, y⁴ = f (x, y, y¹, yⁿ, yᵐ) , satisfying nonlocal 5-point boundary conditions given by y(x₁) = y₁, y(x₂) = y₂, y(x₃) = y₃, y(x) - y(x₅) = y₄ , where a < x₁ < x₂ < x₃ < x₄ < x₅ < b, and y₁, y₂, y₃, y₄ ∈ R. We also consider solutions of this fourth order differential equation satisfying nonlocal 4-point and 3-point boundary conditions given by y(x₁) = y₁, y'(x₁) = y₂, y(x₂) = y₃, y(x₃) - y(x₄) = y₄ , y(x₁) = y₁, y'(x₁) = y₂, y''(x₁) = y₃, y(x₂) - y(x₃) =y₄.Item Uniqueness implies uniqueness and existence for nonlocal boundary value problems for third order ordinary differential equations.(2006-07-29T16:00:19Z) Gray, Michael Jeffery.; Henderson, Johnny.; Mathematics.; Baylor University. Dept. of Mathematics.For the third order ordinary differential equation, $y'''=f(x,y,y',y'')$, it is assumed that, for some $m\geq 4$, solutions of nonlocal boundary value problems satisfying \[y(x_1)=y_1,\ y(x_2)=y_2,\] \[y(x_m)-\sum_{i=3}^{m-1} y(x_{i})=y_3,\] $a