Manajemen Kelas dengan Pendekatan Savi dan Model Examples Non Examples

Examples of non-quasicommutative semigroups decomposed into unions of groups

Decomposability of an algebraic structure into the union of its sub-structures goes back to G. Scorza's Theorem of 1926 for groups. An analogue of this theorem for rings has been recently studied by A. Lucchini in 2012. On the study of this problem for non-group semigroups, the first attempt is due to Clifford's work of 1961 for the regular semigroups. Since then, N.P. Mukherjee in 1972 studied...

Examples of non-locality

We use κ-free but not Whitehead Abelian groups to construct Abstract Elementary Classes (AEC) which satisfy the amalgamation property but fail various conditions on the locality of Galois-types. We introduce the notion that an AEC admits intersections. We conclude that for AEC which admit intersections, the amalgamation property can have no positive effect on locality: there is a transformation...

Model Theory: Examples

Proof. If T were not complete, there would a sentence ψ such that neither ψ and ¬ψ would follow from T . But then T ∪ {ψ} and T ∪ {¬ψ} would have infinite models. Since λ ≥ |L|, both would actually have models of cardinality λ by the theorems of Skolem and Löwenheim. But these cannot be isomorphic, because they are not elementarily equivalent, contradicting the λ-categoricity of T . Theorem 1.2...

Watermarking pada Video: Robustness, Impercetibility dan Pendekatan untuk Domain Terkompresi

ABSTRAK Meningkatnya penggunaan dokumen digital khususnya multimedia (citra, audio, video) dan kemudahan transmisi data melalui Internet meningkatkan kebutuhan terhadap keamanan data terhadap pelanggaran hak cipta. Watermarking merupakan pendekatan yang telah banyak digunakan dan merupakan bagian dari Digital Right Management (DRM) yang dibuat untuk memenuhi kebutuhan tersebut. Khusus untuk vid...

Non-walrasian Equilibrium: Illustrative Examples