Results 71 to 80 of about 2,039,640 (315)
Stability of positive solution to fractional logistic equations
, 2019 In this paper, we show the existence of a classical solution to a class of fractional logistic equations in an open bounded subset with smooth boundary. We use the method of sub-and super-solutions with variational arguments to establish the existence of
Tyagi, Jagmohan +2 more
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Fundamental Solution of Elliptic Equation with Positive Definite Matrix Coefficient
, 2018 In this paper, we study the fundamental solution of elliptic equations with real constant coefficients where is a positive definite matrix. We obtained by searching the radial solution so that we solved the equation into ordinary differential ...
Corina Karim, Khoirunisa Khoirunisa
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Positive periodic solutions for second-order neutral differential equations with functional delay
Electronic Journal of Differential Equations, 2012 We use Krasnoselskii's fixed point theorem to prove the existence of positive periodic solutions of the second-order nonlinear neutral differential equation $$ frac{d^2}{dt^2}x(t)+p(t)frac{d}{dt}x(t)+q(t)x(t) =cfrac{d}{dt}x(t-au(t))+f(t,h(x(t)),g(x ...
Ernest Yankson
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Positive Solutions of Semilinear Equations in Cones [PDF]
Transactions of the American Mathematical Society, 1992 In this paper we consider the problem of finding a positive solution of the equation Δ u
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai +4 more
wiley +1 more source
Positive Solutions of Elliptic Kirchhoff Equations
Advanced Nonlinear Studies, 2016 Abstract We prove several existence results for some nonlinear elliptic Kirchhoff equations.
Ambrosetti Antonio, Arcoya David
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada +6 more
wiley +1 more source
Hermite Positive Definite Solution of a Class of Matrix Equation
, 2011 In this paper, the Hermite positive definite solutions of the nonlinear matrix equation XS+A*X−tA=Q are discussed. A sufficient condition and two necessary and sufficient conditions for the existence of Hermite positive definite solutions for this ...
Li, Qingchun +5 more
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Positive solutions of a boundary value problem with integral boundary conditions
Electronic Journal of Differential Equations, 2011 We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters $mu^*, lambda ...
Jeff R. L. Webb
doaj
Positive solutions of higher order fractional integral boundary value problem with a parameter
Nonlinear Analysis, 2019 In this paper, we study a higher-order fractional differential equation with integral boundary conditions and a parameter. Under different conditions of nonlinearity, existence and nonexistence results for positive solutions are derived in terms of ...
Xinan Hao, Luyao Zhang, Lishan Liu
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