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Now showing items 1-10 of 14

#### On constant-sign periodic solutions in modelling the spread of interdependent epidemics

(Cambridge University Press (CUP), 2006-01-01)

We consider the following model that describes the spread of n types of epidemics which are interdependent on each other:
u(i)(t) = integral(t)(t-r) g(i)(t, s) f(i) (s, u(1)(s), u(2)(s),..., u(n)(s))ds, t is an element of ...

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

(Elsevier BV, 1998-02-01)

#### Some new results for singular problems with sign changing nonlinearities

(Elsevier BV, 2000-01-01)

#### Existence theory for single and multiple solutions to singular positone boundary value problems

(Elsevier BV, 2001-09-01)

#### Nonresonant nonlinear singular problems in the limit circle case

(Elsevier BV, 1996-02-01)

#### Existence results of brezis-browder type for systems of fredholm integral equations

(Springer Nature, 2011-01-01)

In this article, we consider the following systems of Fredholm integral equations:
[GRAPHICS]
Using an argument originating from Brezis and Browder [Bull. Am. Math. Soc. 81, 73-78 (1975)] and a fixed point theorem, we ...

#### Fixed point theorems for convex-power condensing operators relative to the weak topology and appli- cations to volterra integral equations

(Rocky Mountain Mathematics Consortium, 2012-06-01)

In this paper we present new fixed point theorems for weakly sequentially continuous mappings which are convex-power condensing relative to a measure of weak noncompactness. Our fixed point results extend and improve several ...

#### Positive solutions of singular and nonsingular fredholm integral equations

(Elsevier BV, 1999-12-01)