Essays about: "quotient ring"

Found 4 essays containing the words quotient ring.

  1. 1. Zero Spectrum Subalgebras of K[x] Described by Higher Derivatives

    University essay from Lunds universitet/Matematik LTH

    Author : Erik Kennerland; [2023]
    Keywords : Algebra; Almost Monomial Subalgebra; Derivation; Lower Degree; Lower Semigroup; Subalgebra Spectrum; Truncation; Mathematics and Statistics;

    Abstract : Unital subalgebras of finite codimension in the polynomial ring $\mathbb{K}[x]$ are described by a finite number of so called subalgebra conditions over a finite set in $\mathbb{K}$ named the subalgebra spectrum. Restricting attention to subalgebras whose spectrum is the singleton $\{0\}$ reveals a rather well behaved class of subalgebras, called almost monomial from the fact that these contain an ideal consisting of all monomials above a certain degree. READ MORE

  2. 2. Twisted derivations, quasi-hom-Lie algebras and their quasi-deformations

    University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikation

    Author : Philip Bergander; [2017]
    Keywords : quasi-hom-Lie algebra; hom-Lie algebra; Lie algebra; Twisted derivation; sigma derivation; quasi-Lie algebra; derivation; quasi deformation; quasi-deformation; twisted vector field; polynomial algebra; quotient ring;

    Abstract : Quasi-hom-Lie algebras (qhl-algebras) were introduced by Larsson and Silvestrov (2004) as a generalisation of hom-Lie algebras, which are a deformation of Lie algebras. Lie algebras are defined by an operation called bracket, [·,·], and a three-term Jacobi identity. READ MORE

  3. 3. Grading of the affine line and its Quot scheme

    University essay from KTH/Matematik (Inst.)

    Author : Gustav Saeden Ståhl; [2011]
    Keywords : ;

    Abstract : For a field kand a grading of the polynomial ringk[t]with Hilbert functionh, weconsider the Quot functor QuothV , where V = ? di =1k[t]is a finitely generated and free k[t]-module. The Quot functor parametrizes, for any k-algebra B, homogeneous B [t]-submodulesN⊆B⊗kVsuch that the graded components of the quotient( B⊗kV)/Nare locally freeB-modules of rank given byh. READ MORE

  4. 4. Höggallring i praktiskt skogsbruk : beskrivning av en gallringsmodell för granskog som tillämpas på Trolleholms Gods

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Thomas Severinsson; [2003]
    Keywords : höggallring; praktiskt skogsbruk; gallringsmodell; granskog; Trolleholms Gods;

    Abstract : When Norway spruce is planted with large initial spacing and grows on highly productive sites in southern Sweden, a high proportion of the stems gets broad annual rings. The thinning programme carried out at the estate of Trolleholm aims to extract stems with too broad ring width. READ MORE