We investigate the planar cubic Kolmogorov systems with three invariant algebraic curves which have a equilibrium at (1, 1). With the help of computer algebra system ...

We investigate the planar ninth degree non-analytic Poincare systems which have center-focus equilibriums at the origins. Those systems could be changed into analytic systems ...

In the present paper, the exact probability density function and cumulative distribution function of the product and the quotient of two independent stable Lévy random ...

BEST DB Editor is a multi-platform database editor designed to preserve data quality by avoiding common data entry mistakes while efficiently automating common data entry ...

Perturbation–iteration method is generalized for systems of first order differential equations. Approximate solutions of Lotka–Volterra systems are obtained using the ...

We study a class of Padovan-like sequences that can be generated using special matrices of the third order. We show that terms of any sequence of this class can be expressed ...

We describe a new algorithm to compute singular point quantities for quasi analytic systems. It is transparent conceptually and efficient computationally with computer ...

We present the Mathematica package PlanarLinkages, which provides commands for constructing and visualizing planar linkages that draw a prescribed algebraic curve of genus 0, ...

Standard optical imaging systems change their focal length by mechanical movement of lenses and lens groups along the optical axes. An alternative approach is realized in ...

In many applications (hypergeometric-type) special functions like orthogonal polynomials are needed. For example in more than 50% of the published solutions for the ...