Abstract:a b s t r a c tIn this paper, we consider a fractional initial value problem (IVP) in the case where the order ν of the fractional difference satisfies 0 < ν ≤ 1. We show that solutions of this IVP satisfy a continuity condition both with respect to the order of the difference, ν, and with respect to the initial conditions, and we deduce several important corollaries from this theorem. Thus, we address a complication that arises in the fractional case but not in the classical (integer-order) case.
“…Then a number of papers appeared investigating the discrete fractional boundary value problems, such as [1], [6], [12], [16], [17], [18], [19], [20], [23], [21], [24], [15], [26], [31], [33], [5], [14], [22].…”
“…Then a number of papers appeared investigating the discrete fractional boundary value problems, such as [1], [6], [12], [16], [17], [18], [19], [20], [23], [21], [24], [15], [26], [31], [33], [5], [14], [22].…”
“…There has recently been a considerable amount of research conducted on both discrete and continuous fractional boundary value problems and, more generally, fractional difference and differential equations and certain of their properties; see, for example, [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] and the references therein. In many cases, fractional differential equations provide for more realistic models of physical phenomena.…”
“…In this time period, the theory of discrete fractional calculus has been developed in many directions parallel to the theory of fractional calculus such as fractional difference equations, discrete Mittag-Leffler functions, inequalities with discrete fractional operators, see [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] and the references therein.…”
In this paper, we introduce two new monotonicity concepts for a nonnegative or nonpositive valued function defined on a discrete domain. We give examples to illustrate connections between these new monotonicity concepts and the traditional ones. We then prove some monotonicity criteria based on the sign of the fractional difference operator of a function f , ∆ ν f with 0 < ν < 1. As an application, we state and prove the mean value theorem on discrete fractional calculus.
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