A generator of Lie point symmetries admitted by a Lane–Emden equation of the second-kind for arbitrary shape factor k is used to determine invariant boundary conditions admitted by the equation. The generator of Lie point symmetries is then used to reduce the order of the Lane–Emden equation. A phase plane analysis of the reduced equation indicates that the stability of the invariant boundary c...

ions on a high level transformed into executable software (using domain knowledge) User understands Generator expert understands abstractions of the application domain implementation methods wide cognitive distance generator makes expert knowledge available Examples: Data base report generator GUI generator Parser generator GSS-1.3 Task description Generator Implementation Lecture Generating So...

We show that the families (k, r)–RBC of languages accepted (in quasi-realtime) by one-way counter automata having k blind counters of which r are reversalbounded form a strict and linear hierarchy of semi-AFLs. This hierarchy comprises the families BLIND = M∩(C1) of blind multicounter languages with generator C1 := {w ∈ {a1, b1} ∗ | |w|a1 = |w|b1} and RBC = M∩(B1) of reversal-bounded multicount...

In this study, we developed a multi-wavelength terahertz-wave parametric generator that operates with only one injection seeding laser. Tunable lasers used as an seeder must be single-frequency oscillators, and conventional requires basically the same number of wavelengths. order to solve problem, new external cavity semiconductor laser incorporates DMD in its wavelength-selective mechanism. pr...

Let K/k be a finite extension of a global field. Such an extension can be generated over k by a single element. The aim of this article is to prove the existence of a ”small” generator in the function field case. This answers the function field version of a question of Ruppert on small generators of number fields.

the objective of this review to be submitted in two independent parts, for steel frames and for rc frames, is to compare their structural performance with respect to the proposed n2-method, and so also of the consequent convenience of using pushover methodology for the seismic analysis of these structures. a preliminary investigation is presented on a pushover analysis used for the seismic perf...

In this paper we propose a technique to blindly synthesize the generator polynomial of BCH codes. The proposed technique involves finding Greatest Common Divisor (GCD) among different codewords and block lengths. Based on this combinatorial GCD calculation, correlation values are found. For a valid block length, the iterative GCD calculation results either into generator polynomial or some of i...