User:Ulf Rehmann/TEST7

• • Nr 1. Cf. A priori and a posteriori bounds in matrix computations

Markup:
.BDIS {A15}
p \eql {fnnme max} from {1 \leq i \leq n} 
{{left \Lmi {b sub i \mns \sum from {j \eql 1} to n a sub {ij} {x hat} sub j} right \Rmi} 
over {BN \pls AN \cdt \sum from {j \eql 1} to n left \Lmi {{x hat} sub j} right \Rmi}} ,
.EDIS

TeX Code:
\$\$ \tag{A15}
p =  \displaystyle\max _ {1 <= i <= n} 
{{\left \| {b _ i - \sum _ {j = 1} ^ n a _ {ij} {\hat x} _ j} \right \|} 
\over {BN + AN \cdot \sum _ {j = 1} ^ n \left \| {{\hat x} _ j} \right \|}} ,
\$\$

TeX Code displayed: $$ \tag{A15} p = \displaystyle\max _ {1 <= i <= n} {{\left \| {b _ i - \sum _ {j = 1} ^ n a _ {ij} {\hat x} _ j} \right \|} \over {BN + AN \cdot \sum _ {j = 1} ^ n \left \| {{\hat x} _ j} \right \|}} , $$

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• Nr 12. Cf.Abelian category

Markup:
\BMI  H sub {\FgA / \FgA sub 1} \LpaA,\sph B\Rpa \EMI

TeX Code:
\$ H _ {\mathfrak A / \mathfrak A _ 1} (A,\, B) \$

TeX rendered (inline) $ H _ {\mathfrak A / \mathfrak A _ 1} (A,\, B) $

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• Nr 74. Cf.Moduli theory

Markup:
\BMI fnnme Spec \sph \FbZ \Lbk 1 / n ,\sph \Gxi sub n \Rbk\EMI

TeX Code:
\$  {\operatorname\Spec} \, \mathbf Z [ 1 / n ,\, \xi _ n ] \$

TeX rendered (inline) $ {\operatorname\Spec} \, \mathbf Z [ 1 / n ,\, \xi _ n ] $

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• Nr. 226. Cf. Absolute regularity

Markup:
.BDIS
\Gba \Lpa \FfA, \FfB \Rpa \eql {fnnme sup} from {C \seo \FfA \otm \FfB}
left \Lmi {\FsP sub {\FfA \otm \FfB} \Lpa
 C \Rpa \mns \Lpa \FsP sub \FfA \tms \FsP sub \FfB \Rpa \Lpa C \Rpa} right \Rmi
.CDIS {@\eql@}
{1 over 2} {fnnme sup} \sum from {i \eql 1} to I \sum from {j \eql 1} to J
left \Lmi {\FsP \Lpa A sub i \cap B sub j \Rpa \mns
\FsP \Lpa A sub i \Rpa \FsP \Lpa B sub j \Rpa} right \Rmi ,
.EDIS

TeX Code:
\$\S 
\beta ( \mathcal A, \mathcal B ) =  \displaystyle\sup _ {C \in \mathcal A \otimes \mathcal B}
\left \| {\mathrm P _ {\mathcal A \otimes \mathcal B} ( C ) -
( \mathrm P _ \mathcal A - \mathrm P _ \mathcal B ) ( C )} \right \|
=
\$\$

\$\$ 
=
{1 \over 2}  \displaystyle\sup \sum _ {i = 1} ^ I \sum _ {j = 1} ^ J
\left \| {\mathrm P ( A _ i \cap B _ j ) - \mathrm P ( A _ i ) \mathrm P ( B _ j )} \right \| ,
\$\$

TeX Code displayed: $$ \beta ( \mathcal A, \mathcal B ) = \displaystyle\sup _ {C \in \mathcal A \otimes \mathcal B} \left \| {\mathrm P _ {\mathcal A \otimes \mathcal B} ( C ) - ( \mathrm P _ \mathcal A - \mathrm P _ \mathcal B ) ( C )} \right \| = $$

$$ = {1 \over 2} \displaystyle\sup \sum _ {i = 1} ^ I \sum _ {j = 1} ^ J \left \| {\mathrm P ( A _ i \cap B _ j ) - \mathrm P ( A _ i ) \mathrm P ( B _ j )} \right \| , $$