Sometimes, I would like to reference a link from MO and it would be helpful if it got immediately turned into the title without having to type it and then include the hyperlink i.e. https://mathoverflow.net/questions/145606/on-the-pathwise-uniqueness-of-solutions-of-sdesstochastic-differential-eq...

Sometimes on Mathematics Stack Exchange, I would like to reference a link from MathOverflow. It would be helpful if it got immediately turned into the title without having to type it and then include the hyperlink, i.e.: https://mathoverflow.net/questions/145606/on-the-pathwise-uniqueness-of-sol...

In a SE site, if you put the link to a question, the link is parsed into the question's title. For example, https://meta.stackexchange.com/questions/246034 produces Is the loading icon copyrighted by Stack Exchange?. But this does not work cross-sites. Back at Programmers SE, I made a question ...

On this question there are more than 50 links to Stack Overflow questions. However, the last 6 links aren't converted to titles (http://facebook.stackoverflow.com/questions/6530420/control-the-image-that-facebook-shows-when-i-like-a-url should be converted to http://facebook.stackoverflow.com/que...

Sometimes on Mathematics Stack Exchange, I would like to reference a link from MathOverflow. It would be helpful if it got immediately turned into the title without having to type it and then include the hyperlink, i.e.: https://mathoverflow.net/questions/145606/on-the-pathwise-uniqueness-of-sol...

It often happens that people will refer to other questions by simply pasting the full link to this question, especially on Meta. Would it be a good idea to detect such links, and replace them directly by a formatted link on their current title? Example: You can try formatting at this questi...

For intra-site links (like, SO -> SO) this is now supported. https://meta.stackexchange.com/questions/49424/stack-exchange-sandbox becomes* Stack Exchange Data Explorer Like with tag rewrites this is done on post submission and is not currently reflected in the editor preview. It will always...

I know that the dual space of $l^\infty$ is not $l^1$, but I didn't understand the reason. Could you give me a example of an $x \in l^1$ such that if $y \in l^\infty$, then $ f_x(y) = \sum_{k=1}^{\infty} x_ky_k$ is not a linear bounded functional on $l^\infty$, or maybe an example of a $x \notin ...

For any free ultrafilter $\mathscr U$ the function $$\newcommand{\Ulim}{\operatorname{{\mathscr U}-lim}}f \colon x = (x_n) \mapsto \Ulim x_n$$ is a bounded linear function from $\ell_\infty$ to $\mathbb R$. Since $f(e^{i})=0$, this function is not from $\ell_1$. The limit of a sequence $(x_n)$ ...