< 図形と方程式 > 点間の距離 A x, y, B x, y のとき x y x y : に分ける点 æ ç è A x, y, B x, y のとき 線分 AB を : に分ける点は x x y y, ö ø 注 < のとき外分点 三角形の重心 点 A x, y, B x, y, C x, を頂

In [1, 2, 17], following the same strategy of [12], the authors showed a direct Carleman estimate for the backward adjoint system of the population model (1.1) and deduced its

We provide an accurate upper bound of the maximum number of limit cycles that this class of systems can have bifurcating from the periodic orbits of the linear center ˙ x = y, y ˙ =

In the second section, we study the continuity of the functions f p (for the definition of this function see the abstract) when (X, f ) is a dynamical system in which X is a

We study a Neumann boundary-value problem on the half line for a second order equation, in which the nonlinearity depends on the (unknown) Dirichlet boundary data of the solution..

Lang, The generalized Hardy operators with kernel and variable integral limits in Banach function spaces, J.. Sinnamon, Mapping properties of integral averaging operators,

Algebraic curvature tensor satisfying the condition of type (1.2) If ∇J ̸= 0, the anti-K¨ ahler condition (1.2) does not hold.. Yet, for any almost anti-Hermitian manifold there

In this paper, for each real number k greater than or equal to 3 we will construct a family of k-sum-free subsets (0, 1], each of which is the union of finitely many intervals

Global transformations of the kind (1) may serve for investigation of oscilatory behavior of solutions from certain classes of linear differential equations because each of