Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 146993
3 votes
2 answers
2k views

Is the matrix induced L1-norm greater than the induced L2-norm?

For $A \in \mathbb R^{m \times n}$ and the induced norms: $$ \| A \|_1 = \max_{x \ne 0} \frac{\|Ax\|_1}{\|x\|_1} $$ $$ \| A \|_2 = \max_{x \ne 0} \frac{\|Ax\|_2}{\|x\|_2} $$ ... where: $$ \|x\|_1 = \s …
DrunkCoder's user avatar