Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Yun-Sung Chung"'
Publikováno v:
Journal of Differential Equations. 263:2157-2212
We consider a coupled system consisting of a degenerate porous medium type of Keller–Segel system and Stokes system modeling the motion of swimming bacteria living in fluid and consuming oxygen. We establish the global existence of weak solutions a
Publikováno v:
Journal of the Korean Mathematical Society. 51:635-654
We consider the Cauchy problem for a Keller-Segel-fluid model with degenerate diffusion for cell density, which is mathematically formulated as a porus medium type of Keller-Segel equations coupled to viscous incompressible fluid equations. We establ
Autor:
Soon-Yeong Chung, Yun-Sung Chung
Publikováno v:
Integral Transforms and Special Functions. 25:85-96
In this paper, we show that for a given convolutor Q for tempered Gevrey distribution and positive number M, a Gevrey distribution T whose Fourier transform is supported in the set {ξ∈ℝd:|ˆ Q(ξ)|≤M} can be characterized by the behaviour of t
Publikováno v:
Communications of the Korean Mathematical Society. 23:401-411
In this paper, we characterize Sobolev spaces Hs(Rn), s ∈ R by the initial value of solutions of heat equation with a growth condition. By using an idea in its proof, we also discuss a stability problem for Cauchy functional equation in the Sobolev
Autor:
Won-Hun Ham, Yong-Shou Tian, Van-Thoai Pham, Chang-Young Oh, Jae-Eun Joo, Yun-Sung Chung, Kee-Young Lee
Publikováno v:
Tetrahedron: Asymmetry. 19:318-321
A concise, stereocontrolled synthesis of (2 S ,3 R )-3-hydroxypipecolic acid 1 is described. Key features involve diastereoselective oxazoline formation catalyzed by palladium(0) and intramolecular cyclization by catalytic hydrogenation of an oxazoli
Publikováno v:
Publications of the Research Institute for Mathematical Sciences. 43:699-725
In this paper, we discuss discrete versions of the heat equations and the wave equations, which are called the ω-diffusion equations and the ω-elastic equations on graphs. After deriving some basic properties, we solve the ω-diffusion equations un
Publikováno v:
Journal of Mathematical Analysis and Applications. 321(1):114-123
We reformulate and solve the stability problem of a Jensen type functional equation 3 f ( x + y + z 3 ) + f ( x ) + f ( y ) + f ( z ) − 2 f ( x + y 2 ) − 2 f ( y + z 2 ) − 2 f ( z + x 2 ) = 0 , in the spaces of some generalized functions such a
Publikováno v:
Mathematical Inequalities & Applications. :325-334
We reformulate a quadratic functional equation of the form f (x + y + z) + f (x− y + z) + f (x + y − z) + f (−x + y + z) = 4f (x) + 4f (y) + 4f (z) and an inequality |f (x + y + z) + f (x − y + z) + f (x + y − z) + f (−x + y + z) − 4f (
Autor:
Kyungkeun Kang, Yun-Sung Chung
Publikováno v:
Journal of Mathematical Physics. 57:041503
We consider a coupled system consisting of the Navier-Stokes equations and a porous medium type of Keller-Segel system that model the motion of swimming bacteria living in fluid and consuming oxygen. We establish the global-in-time existence of weak
Publikováno v:
Archives of Pharmacal Research. 17:119-123
The synthesis of 3a, 3b, 7a and 7b from Benzothiazepinone and 1,4-dihyropyridine derivatives is described. Benzothiazepinone and 1,4-dihydropyridine derivatives were prepared according to literature procedure. The key reactions involve esterification