# Tag Info

### Ordered list of integer vectors

Thanks to LukasLang: ReverseSortBy[Tuples[Range[-nmax, nmax], n], Count[#, 0] &] does the job. Here nmax = $N$ from the ...
• 143
Accepted

### Dropping non-commutative product in the end

You can simply replace NonCommutativeMultiply by Times as follows: ...
• 25.4k
Accepted

### substitution $A \mapsto A + \delta_A$ with some operator $\delta_A$

There are many possibilities. Here is an ad-hoc proposal. It uses transformation rules and **. It is limited to what OP asked for. It would have to be extended to ...
• 5,298