Results 91 to 100 of about 3,838,636 (215)
Stability Conditions of Second Order Integrodifferential Equations with Variable Delay
Abstract and Applied Analysis, 2014 We investigate integrodifferential functional differential equations ẍ+f(t,x,ẋ)ẋ+∫t-r(t)ta(t,s)g(x(s))ds=0 with variable delay. By using the fixed point theory, we obtain conditions which ensure that the zero solution of this equation is stable under
Dingheng Pi
doaj +1 more source
Nullspace of the m-th order discrete problem with nonlocal conditions
Lietuvos Matematikos Rinkinys, 2016 In this paper, we obtain the representation of the nullspace for m-th order discrete linear problems with nonlocal conditions. An example is given. The research was partially supported by the Research Council of Lithuania (grant No. MIP-047/2014).
Gailė Paukštaitė, Artūras Štikonas
doaj +1 more source
On constrained set-valued optimization [PDF]
The set-valued optimization problem minC F(x), G(x)\(-K) 6= ; is considered, where F : Rn Rm and G : Rn Rp are set-valued functions, and C Rm and K Rp are closed convex cones.
Rocca Matteo, Ginchev Ivan
core
Explicit solutions for a system of first-order partial differential equations
Electronic Journal of Differential Equations, 2008 In this paper we construct explicit weak solutions of a system of two partial differential equations in the quarter plane ${(x,t):x>0,t>0}$ with initial conditions at $t=0$ and a weak form of Dirichlet boundary conditions at $x=0$. This system was
Kayyunnapara Thomas Joseph
doaj
, 2009 The aim of this report is to derive generalized coordinates for the specific case of mapping only the streamwise and radial coordinate of a cylindrical coordinate system, while leaving the azimuthal coordinate unchanged.
Sandberg, Richard D.
core
Explicit solutions for a system of first-order partial differential equations-II
Electronic Journal of Differential Equations, 2011 In this note we give an explicit formula for the solution of conservative form of a system studied in a previous article [6], in the domain ${(x,t):x>0,t>0}$ with initial conditions at $t=0$ and with Bardos Leroux Nedelec boundary conditions at $x=0$.
Kayyunnapapra Thomas Joseph +1 more
doaj
Green’s Matrices for First Order Differential Systems with Nonlocal Conditions∗
Mathematical Modelling and Analysis, 2017 In this paper, we investigate the linear system of first order ordinary differential equations with nonlocal conditions. Green’s matrices, their explicit representations and properties are considered as well.
Gailė Paukštaitė, Artūras Štikonas
doaj +1 more source
Order for Immediate Action from the Adjutant General, War Department dated October 7, 1943
, 1943 By order of the Secretary of War, rescinding a previous action order on employment of persons of Japanese ancestry in Army posts and establishments and authorizing employment of civilian employees of Japanese ancestry under stated conditions and ...
Ulio, J. A.
core
Sufficient conditions for meromorphic starlikeness and close-to-convexity of order α
International Journal of Mathematics and Mathematical Sciences, 2001 The object of the present paper is to derive a property of certain meromorphic functions in the punctured unit disk. Our main theorem contains certain sufficient conditions for starlikeness and close-to-convexity of order α of meromorphic functions.
Nak Eun Cho, Shigeyoshi Owa
doaj +1 more source
Modelling shock-induced instabilities, transition and turbulent mixing using high-order methods [PDF]
, 2008 High-order numerical methods have been considered and implemented in order to assess their applicability in a range of complex ows centering on shockinduced turbulent mixing.
Mosedale, Andrew Daniel
core