## Infinitely Many Sign-Changing Solutions for Some Nonlinear Fourth-Order Beam Equations

*Ying Wu*;

*Guodong Han*;

- Publisher: Hindawi Publishing Corporation
- Journal: issn: 1085-3375, eissn: 1687-0409
Related identifiers: - Subject: Mathematics | QA1-939 | Article Subject

Several new existence theorems on positive, negative, and sign-changing
solutions for the following fourth-order beam equation are obtained:
${u}^{\left(4\right)}=f\left(t,u\left(t\right)\right)$ , $t\in \left[0,1\right]$ ; $u\left(0\right)=u\left(1\right)={u}... View more

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