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 16722

Questions about the group of automorphisms of any mathematical object $X$ endowed with a given structure, i.e the group of all bijective maps from $X$ to itself preserving this structure, and hence helping study it further and understand it better.

3 votes
Accepted

Semigroup product of the left-invariant completion of a Polish group (restatement of Questio...

In the end it was the original question which was answered first. The answer to Is there a relational countable ultra-homogeneous structure whose countable substructures do not have the amalgamation …
Itaï BEN YAACOV's user avatar
5 votes
1 answer
340 views

Semigroup product of the left-invariant completion of a Polish group (restatement of Questio...

This is a re-statement, of sorts, of the question Is there a relational countable ultra-homogeneous structure whose countable substructures do not have the amalgamation property?, so far unanswered. …
Itaï BEN YAACOV's user avatar