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General linear group

We showed back in (3.4) that an algebraic G can be embedded in the general linear group of some vector space we now must refine that so that we can pick out a specified subgroup as the stabilizer of a subspace. Recall from (12.4) that f W is any subspace of some V where G acts linearly, the stabilizer Hw(R)= ge G R) g(W R) W R does form a closed subgroup. [Pg.129]

The quotient GL /Gm is called the projective general linear group, PGL. ... [Pg.154]

Now, because of their construction, the spin-coupled structures form bases for irreducible representations of the general linear group GL(n) . The particular irreducible representation is determined by N and S, i.e. the same two quantities which determine the irreducible representation of the symmetric group. In addition, if all the symmetry-allowed spin couplings k are included, the orbitals occurring in a particular structure may be ordered in... [Pg.361]

HarM64 Harrison, M. A. On the classification of Boolean functions by the general linear and affine groups. SIAM J. 12 (1964) 285-299. [Pg.141]

Traditionally, the determination of a difference in costs between groups has been made using the Student s r-test or analysis of variance (ANOVA) (univariate analysis) and ordinary least-squares regression (multivariable analysis). The recent proposal of the generalized linear model promises to improve the predictive power of multivariable analyses. [Pg.49]

Lyman (2000) recommends several methods. The most accurate is said to be the non-linear group contribution method of Lai et al. (1987), which is generally applicable to most organics, including multifunctional compounds. The average error is 1.29%. [Pg.60]

First, the discretisation of the second, spatial derivative of concentration will be reiterated in a general form that can then be built into the methods to follow. For the three concentrations grouped around the one at the point Xi, we can write the general linear expression,... [Pg.119]

In view of the differences between the electronic structures of linear, bent, and bridging NO groups, considerable differences in their chemical reactivity can be expected. Generally, linear MNO groups are attacked by nucleophiles while bent ones with, in effect, a lone pair on N are susceptible to electrophilic attack, but this is by no means a rule and there are many exceptions. A few of the more common reactions of nitrosyls are now described. [Pg.345]

This is based on the evaluation of the joint probability /7(Egr P), where Egj-denotes the extinction symbol, and P = (A, G... /n) are the correlated reflection intensities obtained from the linear least-squares Pawley refinement, when the most general extinction group of the crystal system under consideration is adopted. From Bayes s theorem ... [Pg.221]

When a compound was identified at least in most samples of a group, an analysis of variance with interaction by the General Linear Model procedure was performed to check the effect of salt content (lower and higher), sodium nitrite (presence, absence), added amino acids (control, cysteine and proline) and reaction time (7, 14 and 21 days). When significant and more than two levels in an effect, multiple comparison by the Tukey test were carried out to compare means. Statistic analyses were performed by means of the SPSS version 11.0. [Pg.75]

The constant variance assumption can be relaxed via either a rescaling of the response or a weighted fit (4). Similarly, if an appropriate model is used, the normality assumption may be relaxed (4). For example, with a dichotomous response, a logit-log model may be appropriate (5). Other response patterns (e.g., Poisson) may be fit via a generalized linear model (6). For quantitative responses, it is often most practical to find a rescaling or transformation of the response scale to achieve nearly constant variance and nearly normal responses. Finally, if samples are grouped, then blocks or other experiment design structures must be included in the model (7-12). [Pg.106]

In general, symmetry conditions are part of the characterization of a definite type of quantity in a physical space. Tensors and tensor spaces were universal objects for the representation of the linear group transformations that are fundamental for the expansion of the chemical quantum theory of bonding. All the irreducible representations could then be characterized by some symmetry condition inside some tensor power of the state space, symbolized as V. Thus, a broad correspondence between the representations of the symmetric group and the irreducible representations inside the state space (representations of order k ) played an important role for the answer to the first question. [Pg.83]

A condition known as shiitake dermatitis or toxicoderma occurs in some individuals after the ingestion of raw or partially cooked shiitakes. The clinical features are linear groups of pruritic erythematous papules or flagellate dermatitis on the trunk, and sometimes on the extremities, neck, face, and head, typically occurring up to 48 hours after shiitake ingestion. The pathogenicity of the dermatitis is not known however, patients generally do not test... [Pg.509]

The silicone pol)oners used are generally linear, unbranched polydimethylsiloxanes with vinyl groups (Fig. 1) and a molecular weight between 10 (XK) und 100 000 g/mol, since these are well suited to LIM processing. Polymers with a heterogeneous vinyl group distribution improve tear strength and are therefore also used [5]. [Pg.679]


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