4 citations · 10 across the 12 of their papers we have counts for
15 papers
A Kamenev-type oscillation result for a linear --order fractional differential equation
Dumitru Baleanu, Octavian G. Mustafa, Donal O'Regan
We investigate the eventual sign changing for the solutions of the linear equation , , when the functional coefficient satisfies…
On a fractional differential equation with infinitely many solutions
Dumitru Băleanu, Octavian G. Mustafa, Donal O'Regan
We present a set of restrictions on the fractional differential equation , , where and , that leads to the existence of an infinity…
On the Nagumo uniqueness theorem
Octavian G. Mustafa, Donal O'Regan
By a convenient reparametrisation of the integral curves of a nonlinear ordinary differential equation (ODE), we are able to improve the conclusions of the recent contribution [A.…
A Nagumo-like uniqueness result for a second order ODE
Octavian G. Mustafa
In this note, we present an extension to second order nonlinear ordinary differential equations (ODEs) of the Nagumo-like uniqueness criterion for first order ODEs established in […
On isolated vorticity regions beneath the water surface
Octavian G. Mustafa
We present a class of vorticity functions that will allow for isolated, circular vorticity regions in the background of still water preceding the arrival of a tsunami wave at the s…
On the uniqueness of flow in a recent tsunami model
Octavian G. Mustafa
We give an elementary proof of uniqueness for the integral curve starting from the vertical axis in the phase-plane analysis of the recent model [A. Constantin, R.S. Johnson, Propa…