منابع مشابه
Being Agile is not Enough
Agile Approaches arose in the world of software development. Frequent releases provide early feedback with respect to requirements, technology and business value. Focused and empowered teams deliver huge amounts of software with very high quality. Transferring these concepts to the world of embedded development, the greatest challenge are frequent releases due to the interdependency of requirem...
متن کاملBeing Fat and Friendly is Not Enough
We show that there is no (1 + ε)-approximation algorithm for the problem of covering points in the plane by minimum number of fat triangles of similar size (with the minimum angle of the triangles being close to 45 degrees). Here, the available triangles are prespecified in advance. Since a constant factor approximation algorithm is known for this problem [CV07], this settles the approximabilit...
متن کاملBeing Ethical When the Boss Is Not
A missing element in discussions of ethical leadership is: What happens to enforcement of ethics if it is the managers who are behaving unethically? In this article we address this question by describing a framework of upward ethical leadership. This framework expands conceptualizations of leadership beyond top-down models to a view that considers employees to be active participants in the lead...
متن کاملInvariant tori for Hamiltonian PDE
Many of the central equations of mathematical physics, the nonlinear wave equation, the nonlinear Schrödinger equation, the Euler equations for free surfaces, can be posed as Hamiltonian systems with infinitely many degrees of freedom. In a neighborhood of an equilibrium, the linearized equations are those of a harmonic oscillator and thus solutions exhibit periodic and quasi-periodic motion. T...
متن کاملClassical Mechanics Is Lagrangian; It Is Not Hamiltonian
One can (for the most part) formulate a model of a classical system in either the Lagrangian or the Hamiltonian framework. Though it is often thought that those two formulations are equivalent in all important ways, this is not true: the underlying geometrical structures one uses to formulate each theory are not isomorphic. This raises the question whether one of the two is a more natural frame...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 1991
ISSN: 0012-365X
DOI: 10.1016/0012-365x(91)90165-x