diffusivity equation commonly used for pressure distribution prediction in porous media results from substituting equation of state and continuity equation in navier-stokes momentum equation. from mathematical point of view this equation format shows infinite propagation speed for pressure pulse through porous media, which is physically impossible. this issue may caused by numerous assumptions ...

In this paper, we intend to solve special kind of ordinary differential equations which is called Heun equations, by converting to a corresponding stochastic differential equation(S.D.E.). So, we construct a stochastic linear equation system from this equation which its solution is based on computing fundamental matrix of this system and then, this S.D.E. is solved by numerically methods. Moreo...

Küresel kriz ve Covid-19 pandemi etkisiyle yaşanan ekonomik daralma sonrası uygulanan genişletici para maliye politikaları sebebiyle borç sürdürebilirliği kavramı tüm ulusal ekonomilerin öncelikli sorunu haline gelmiştir. Bu bağlamda ödemeler dengesindeki kırılganlıkları konunun özellikle Hindistan, Brezilya, Meksika, Güney Afrika Türkiye için analiz edilmesinin önemi artmıştır. çalışmada makro...

won{gil park [won{gil park, j. math. anal. appl., 376 (1) (2011) 193{202] proved the hyers{ulam stability of the cauchy functional equation, the jensen functional equation and the quadraticfunctional equation in 2{banach spaces. one can easily see that all results of this paper are incorrect.hence the control functions in all theorems of this paper are not correct. in this paper, we correctthes...

Abstract Phytophthora boehmeriae Sawada is an important pathogenic oomycete, and causes blight of cotton ramie, which are main limiting factors to the production ramie in China. The aggressiveness fitness metalaxyl-resistant (MR) mutants P. obtained by inducing on LBA amended with sublethal dose (10 µg·mL −1 ) metalaxyl were studied this paper. results showed that there no significant differenc...