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Extend ideal interface #1731

Merged
merged 10 commits into from
Aug 18, 2024
Merged

Extend ideal interface #1731

merged 10 commits into from
Aug 18, 2024

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paemurru
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Updating the ideal interface in AbstractAlgebra instead of in OSCAR. This should fix the inconsistencies brought up in oscar-system/Oscar.jl#3826 (comment)

After this pull request is merged, several ideal functions can be deleted in OSCAR.

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codecov bot commented Jun 15, 2024

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 87.84%. Comparing base (51d35b2) to head (980d758).
Report is 7 commits behind head on master.

Files Patch % Lines
src/Ideal.jl 0.00% 12 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##           master    #1731      +/-   ##
==========================================
+ Coverage   87.65%   87.84%   +0.18%     
==========================================
  Files         117      117              
  Lines       30090    30753     +663     
==========================================
+ Hits        26376    27015     +639     
- Misses       3714     3738      +24     

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@fingolfin fingolfin left a comment

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Thank you! Two quick comments

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paemurru and others added 2 commits June 18, 2024 15:25
Co-authored-by: Max Horn <max@quendi.de>
Before, it might have happened that the command `R * ZZRingElem(2)` fails while `R * big(2)` succeeds.
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Max: "the advantage is that if some ring type wants to implement say ideal(R::MyRing, n::Int) in a special optimized fashion that avoids constructing R(n), then R*2 would benefit from that"

Co-authored-by: Max Horn <max@quendi.de>
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BTW we could perhaps add some basic tests by defining, say

ideal(R::Integers, x) = Generic.Ideal(R, x)     # in src/julia/Integer.jl
ideal(R::Rationals, x) = Generic.Ideal(R, x)    # in src/julia/Rational.jl

and then we can do some tests... except we can't do much with it, see issue #1734

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paemurru and others added 3 commits July 31, 2024 15:04
Previously, there was a possibility of an infinite recursion if the base functions were not implemented. Also, writing `R(x)` when `x` is a vector is problematic, it might have unexpected results.
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@fingolfin fingolfin left a comment

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Looks great to me

@fingolfin fingolfin enabled auto-merge (squash) August 1, 2024 15:28
This is already allowed for Hecke ideals.
For consistency, we allow this already in AbstractAlgebra.
auto-merge was automatically disabled August 1, 2024 18:47

Head branch was pushed to by a user without write access

@thofma thofma closed this Aug 18, 2024
@thofma thofma reopened this Aug 18, 2024
@thofma thofma merged commit 3fc7d25 into Nemocas:master Aug 18, 2024
51 of 58 checks passed
@paemurru paemurru deleted the ep/ideal branch August 19, 2024 21:39
@thofma thofma mentioned this pull request Aug 20, 2024
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3 participants