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For questions about built-in search functionality of this site and about searching this site using external search engines.

1
vote
1answer
79 views

Help finding question

I am seeking a link to a question I posed myself, but which I can no longer find, either with Google site:https://mathoverflow.net or with StackExchange search (...
0
votes
2answers
117 views

How to know if an old post is deleted, when I cannot find it

I'm looking for a post that I'm 100% sure was still here on this site about a year ago. It probably has tags "big-list" and "soft-question", and at least several of the responses received more than ...
6
votes
1answer
159 views

Is it possible to search for posts/questions of an user $X$ commented on/answered by the user $Y$?

Basically the question is in the title. Maybe it sounds not entirely healthy but, say, I want to find all instances when the user $Y$ has replied to the user $X$, is there a way to do it? Maybe more ...
3
votes
1answer
126 views

Searching for comments

Is there a method to search past comments only. I'm interested in a comment I read years ago that was not specific to the question or answers, so it wouldn't be in the normal search. Keywords: ...
2
votes
0answers
149 views

Many answers, each one with many votes

Just by curiosity: This recent question has had five answers so far, and each answer has gotten more than 10 upvotes. I think this is quite exceptional (unless the questions are CW of course). How ...
2
votes
4answers
470 views

Is there any third party search engine for MathOverflow?

As has been discussed in this meta post, there is a third party search (with $\LaTeX{}$ support) engine for Mathematics Stack Exchange. I was wondering whether there is search engine with similar ...
2
votes
1answer
178 views

Recovering just for me my deleted question (or answer)

I am sorry to ask. There was an MO Q. by me (which addressed in an elementary way the infinity axiom, actually by just providing another formulation of algebraic flavor). I have carelessly deleted my ...
14
votes
3answers
676 views

MO answers that are Google top hits

The question "Who is L. A. Balashov?" shows the following curious behavior: Only a few minutes after posting, it became a Google top-hit for the search terms "mathematician balashov": https://www....
3
votes
1answer
220 views

Are searches by tag broken?

I have tried a few variations, and they all take me to the Featured tab. This would be OK if I wanted featured questions. Unfortunately, I want questions (more than 1) which are tagged nt or co or ...
11
votes
0answers
418 views

searching mathematical formulae like in Zentralblatt Math

It would be nice if searching mathematical formulae like Zentralblatt Math http://zbmath.org/formulae/ could be implemented.
3
votes
1answer
212 views

Missing question and user?

Well, this is embarrassing. I've spent the last 20 minutes looking for a particular question on main but haven't been able to find it at all. This question involves something like the growth of $n!/(...
3
votes
1answer
77 views

Searching for questions without a certain tag

Is it possible to search the main site for questions which do not have a certain tag?
4
votes
1answer
196 views

Searching via site:mathoverflow.net: a puzzle

I was searching for an answer I posted, using Google. I knew I mentioned "beltway," "homometric," and "Skiena." But none of the Google searches ...