[PDF] Top 20 Un estado del arte en torno a los estudios sobre la prensa española y la Guerra del 98

... It is clear that the attack strategies that work for MQ and SIS do not apply out of the box to the SSNE problem. The random guess of the hybrid attack on MQ might fix the first few variables to small values, but offers ... See full document

... approximate solutions to two dif- ferent types of systems of nonlinear partial differential equations for  < α, β , γ < , and exact solutions in the case when α = β = γ = ... See full document

... type nonlinear fractional differential system of higher ...integral equations. Applying the nonlinear alternative of Leray-Schauder, we prove the existence of solutions of the fractional ... See full document

... global solutions and the associated infinite dimensional dy- namical systems have become the essential aspects in the field of nonlinear evolutionary equations such as the existence of global ... See full document

... Shivaji, An existence result on positive solutions for a class of p-Laplacian systems , Nonlinear Anal.. Shivaji, Existence results for classes of p-Laplacian semipositone equations , su[r] ... See full document

... differential equations have been studied extensively (see ...positive solutions for second order singular boundary value problems of a coupled system of differential ...coupled systems of ... See full document

... ordinary differential equations, equations with partial derivatives, integral and integro-differential equations, optimal control theory, etc. In particular, the fixed point theorems derived from ... See full document

... c relates the system (5) to a solvable yet still nonlinear system. Interestingly, a system similar to (6) arises ([10] [11]) if one seeks potentials for which the large frequency WKB series is finite and yields ... See full document

... a nonlinear system of equations and the matrix B in the case of nonlinear system of a nonlinear system of differential ...of equations is in the form (6’) and if the system of ... See full document

... While most existing research focuses on constant delays, the considered equations (.) contain variable delays. Moreover, it is important to note that our results are valid even in the case where the ... See full document

... differential equations arise in a variety of different areas of applied mathematics and ...differential equations has been widely investigated in [–]. Since then, nonlinear high order nonlocal BVPs ... See full document

... x (iv) + a ... x + b x ¨ + c x ˙ + dx = p(t), ( ∗ ) d > 0 and constants b, c (with h(x) = dx, f (x, ˙ x) = b, g ( ˙ x) = c x) and ˙ p(t) = 0 in (1.1), is known to have convergent solutions if the Routh-Hurwitz ... See full document

... di↵erential equations, need special investigation that relies on the use of mathematical analysis and a range of related proof ...di↵erential equations would not be possible to obtain without the use of ... See full document

... of solutions for all x ∈ [ ◦ a , ◦ b]. The equations considered in this article will always have this ...Strong Short-Shadow Lemma of ...both equations have uniqueness of ...of ... See full document

... s, x(s) ds, −∞ < a ≤ t ≤ b < + ∞ . (1.1) Note that the previous integral equation can be considered as a nonlinear Fredholm equa- tion expressed as a perturbed linear equation. A Krasnoselkii-Schafer fixed ... See full document

... anti-periodic solutions for the cases of a convex and of a nonconvex valued perturbation term which is multivalued based on the techniques and results of the theory of set-valued analysis and the Leray-Schauder ... See full document

... Periodic solutions of di ff erence equations in Euclidean and Banach spaces have been con- sidered by many authors, see, for example, [1–3, 5–10, 12] and the references ...Mainly equations with ... See full document

... these equations have the structure of continuous dynamical systems within intervals of certain ...the equations are thus similar in structure to those found in certain “sequential-continuous” models ... See full document

... Difference equations appear naturally as discrete analogues and as numerical solutions of differential and delay differential equations having applications in biology, ecology, economy, physics, and so ... See full document

... We consider the existence, the nonexistence, and the uniqueness of solutions of some special systems of nonlinear elliptic equations with boundary conditions. In a particu- lar case, the ... See full document