## Search

Now showing items 21-30 of 126

#### Positive solutions of singular complementary lidstone boundary value problems

(Springer Nature, 2010-01-01)

We investigate the existence of positive solutions of singular problem (-1)(m)x((2m+1)) = f(t, x, ..., x((2m))), x(0) = 0, x((2i-1))(0) = x((2i-1))(T) = 0, 1 &lt;= i &lt;= m. Here, m &gt;= 1 and the Caratheodory ...

#### Positive solutions in the sense of distributions of singular boundary value problems

(American Mathematical Society (AMS), 2008-01-01)

We obtain positive solutions in the sense of distributions of singular boundary value problems using perturbation and variational methods.

#### Browder-krasnoselskii-type fixed point theorems in banach spaces

(Springer Nature, 2010-01-01)

We present some fixed point theorems for the sum A + B of a weakly-strongly continuous map and a nonexpansive map on a Banach space X. Our results cover several earlier works by Edmunds, Reinermann, Singh, and others.

#### Controllability of nonlinear delay oscillating systems

(University of Szeged, 2017-01-01)

In this paper, we study the controllability of a system governed by second order delay differential equations. We introduce a delay Gramian matrix involving the delayed matrix sine, which is used to establish sufficient ...

#### A unified treatment using critical point methods of the existence of multiple solutions for superlinear and sublinear neumann problems

(American Institute of Mathematical Sciences (AIMS), 2011-05-01)

In this paper we present a framework which permits the unified treatment of the existence of multiple solutions for superlinear and sublinear Neumann problems. Using critical point theory, truncation techniques, the method ...

#### Fixed points and homotopy results for ćirić-type multivalued operators on a set with two metrics

(The Korean Mathematical Society, 2008-02-29)

The purpose of this paper is to present some fixed point results for nonself multivalued operators on a set with two metrics. In addition, a homotopy result for multivalued operators on a set with two metrics is given. The ...

#### A new gap function for vector variational inequalities with an application

(Hindawi Limited, 2013-01-01)

We consider a vector variational inequality in a finite-dimensional space. A new gap function is proposed, and an equivalent optimization problem for the vector variational inequality is also provided. Under some suitable ...

#### On the oscillation of certain third-order difference equations

(Springer Nature, 2005-01-01)

We establish some new criteria for the oscillation of third-order difference equations of the form Delta((1/a(2)(n))(Delta(1/a(1)(n))(Delta x(n))(alpha 1))(alpha 2)) + delta q(n)f(x[g(n)]) = 0, where Delta is the forward ...

#### Positive solutions to superlinear singular boundary value problems

(Elsevier BV, 1998-02-01)

#### Eigenvalues and the one-dimensional p-laplacian

(Elsevier BV, 2002-02-01)