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We employ the critical point theory to establish the existence of multiple solutions of some regular as well as singular discrete boundary value problems.
The singular problem (-1) n x (2n) =μf(t,x,...,x (2n-2) ), x (2j) (0)=x (2j) (T)=0(0=<j=<n-1), max{x(t):0=<t=<T}=A depending on the parameter μ is considered. Here the positive Caratheodory function f may be singular at the zero value of all its phase variables. The paper presents...
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