absolute value of supremum is smaller than or equal to supremum of absolute values
69184
Proof that absolute value of supremum equals suprememum of absolute value
125934
Minimize absolute values of errors instead of squares
7974
lim sup inequality $\limsup ( a_n b_n ) \leq \limsup a_n \limsup b_n $
125077
what is the absolute value of a set?
100565
Property of sup of a set of numbers
107894
Inequality involving the sup of a function and its first and second derivatives
155884
What are the conditions on $\text{tr}(AB) \leq \text{tr(A)} \text{tr(B)}$ to be true?
73952
Upper bound for the sum of absolute values of the eigenvalues
130207
Why is the p-value written with a supremum?
7740
The median minimizes the sum of absolute deviations (the $ {\ell}_{1} $ norm)
121504
Supremum of a product measurable function...
133870
if $\alpha\leq\beta$ then there is $\gamma$ such as $\alpha+\gamma=\beta$
76140
The supremum norm is submultiplicative
86866
Is there a number whose absolute value is negative?
58827
Absolute value of a measurable function is measurable
33543
is "y1 < x < y2" an inequality or inequalities?
4064
An equality involving the mean value property