The equation to be considered is Lny(t) + p(t)y((t)) = 0: The aim of this paper is to derive suucient conditions for property (A) of this equation. In the paper a result of D zurina 2] concerning asymptotic properties of the third order linear diierential equations with delay is extended to an n-th order delay diierential equation. We consider the diierential equation (1) L n y(t) + p(t)y((t)) ...

Parallel to the concept of quasi-separate continuity, we define a notion for quasi-oscillation of a mapping f : X × Y → R. We also introduce a topological game on X to approximate the oscillation of f . It follows that under suitable conditions, every quasi-separately continuous mapping f : X×Y → R has the Namioka property. An illuminating example is also given.

In this paper, the expression of Weierstrass operators as differential operators on polynomials is used for the construction of associated quasi-interpolants. Then the convergence properties of these operators are studied. AMS Classification: 41A35.

conclusions an increased lumbar lordosis during the prone knee-flexion test is due to instability in a lumbar spine region. results results demonstrated that there was a statistically significant difference in lumbar lordosis in prone position and after performing the prone knee-flexion test among healthy subjects (p < 0.0001). patients and methods this quasi-experimental study with repeated me...

the present quasi-experimental study investigated the effect of using lesson study as an example of collaborative research in the classroom on the teaching motivation and self-efficacy of physical education teachers. for data collection, descriptive, case study, and qualitative methods were applied. the statistical population consisted of all physical education teachers in piranshahr city. 20 s...

We apply and extend some well known and some recent techniques from algebraic residue theory in order to relate to each other two major subjects of algebraic and numerical computing that is computations with structured matrices and solving a system of polynomial equations In the rst part of our paper we extend the Toeplitz and Hankel structures of matrices and some of their known properties to ...

Local Lyapunov exponents of the quasi-geostrophic ocean dynamics.

We examine properties of binary relations that complement quasi-transitivity and Suzumura consistency in the sense that they, together with the original axiom(s), are equivalent to transitivity. In general, the conjunction of quasi-transitivity and Suzumura consistency is strictly weaker than transitivity but in the case of collective choice rules that satisfy further properties, the conjunctio...

It is known that commutative BCK-algebras form a variety, but BCK-algebras do not [4]. Therefore H. Yutani introduced the notion of quasicommutative BCK-algebras. In this article we first present the notion and general theory of quasi-commutative BCI-algebras. Then we discuss the reduction of the type of quasi-commutative BCK-algebras and some special classes of quasicommutative BCI-algebras.