175 citations · 253 across the 17 of their papers we have counts for
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Regions of existence for a class of nonlinear diffusion type problems
Amit K. Verma, Mandeep Singh, Ravi P. Agarwal
The regions of existence are established for a class of two point nonlinear diffusion type boundary value problems (NDBVP) \begin{eqnarray*} &&\label{abst-intr-1} -s''(x)-ns'(x)-\f…
Stability by Lyapunov functions of Caputo fractional differential equations with non-instantaneous impulses
Ravi Agarwal, S. Hristova, D. O'Regan
The stability of the zero solution of a nonlinear Caputo fractional differential equation with noninstantaneous impulses is studied using Lyapunov like functions. The novelty of th…
Some Results for Impulsive Problems via Morse Theory
Ravi P. Agarwal, T. Gnana Bhaskar, Kanishka Perera
We use Morse theory to study impulsive problems. First we consider asymptotically piecewise linear problems with superlinear impulses, and prove a new existence result for this cla…
On a local theory of asymptotic integration for nonlinear ordinary differential equations
Octavian G. Mustafa, Ravi P. Agarwal
By revisiting an asymptotic integration theory of nonlinear ordinary differential equations due to J.K. Hale and N. Onuchic [Contributions Differential Equations 2 (1963), 61--75],…
Fixed point theory for composite maps on almost dominating extension spaces
Ravi P Agarwal, Jong Kyu Kim, Donal O'Regan
New fixed point results are presented for maps in extension type spaces.