摘要：In this paper, we investigate the existence and uniqueness of solutions for a differential equation of fractional-order q ∈ ( 1 , 2 ] $q \in(1, 2]$ subject to nonlocal boundary conditions involving Caputo derivative of the form x ( 0 ) = δ x ( σ ) , a c D μ x ( ϱ 1 ) + b c D μ x ( ϱ 2 ) = c ∫ β 1 β 2 c D μ x ( s ) d s , $$x(0)=\delta x(\sigma),\qquad a {}^{c}D^{\mu} x( \varrho_))+b {}^{c}D^{\mu} x(\varrho_,)=c \int_{\beta_)}^{\beta_,} {}^{c}D^{\mu} x(s) \,ds, $$ 0 < ϱ 1 < σ < β 1 < β 2 < ϱ 2 < 1 $0 < \varrho_) < \sigma< \beta_) < \beta_, < \varrho_, <1$ , 0 < μ < 1 $0<\mu<1$ , and δ, a, b, c are real constants. We make use of some standard tools of fixed point theory to obtain the desired results which are well illustrated with the aid of examples.
关键词：fractional order derivative ; nonlocal conditions ; strip ; existence ; fixed point
