We introduce a new variational method in order to derive results concerning existence and nodal properties of solutions to superlinear equations, and we focus on applications to the equation where h is a Caratheodory function which is odd in u. In the particular case where h is radially symmetric, we prove, for given n 2 N, the existence of a solution having precisely n nodal domains, whereas s...

Abstract In this paper, we study the oscillation of a class third-order Emden–Fowler delay dynamic equations with sublinear neutral terms on time scales. By using Riccati transformation and integral inequality, establish several new theorems to ensure that each solution equation oscillates or asymptotically approaches zero, results in literature are supplemented extended. Examples given illustr...

Abstract The purpose of this paper is to analyze the conformally flat spherically symmetric fluid distribution with generalized polytropic equations state. We have developed two different framework for definitions polytropes. frameworks development modified Lane–Emden equation are presented both cases. condition used calculate anisotropy factor which transform considered systems into consistent...

We analyze the effects of modified gravity on specific heats electrons and ions, Debye temperature, crystallization process, cooling mechanism in white dwarfs. derive Lane-Emden-Chandrasekhar equation relate it to process equations for Palatini $f(R)$ gravity. Moreover, first time literature, we show that model plays a crucial role not only mass size dwarf, but also affects their internal prope...

High-level Petri nets for the process description and control in service-oriented manufacturing systems J. Marco Mendes a , Paulo Leitão b c , Armando W. Colombo d e & Francisco Restivo a c a Faculty of Engineering of University of Porto, Porto, Portugal b Department of Electrical Engineering, Politechnic Institute of Braganca, Braganca, Portugal c LIACC Artificial Intelligence and Computer Sci...