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Hi!
`paper-qcoh.tex`, on lines 1318 and 1319, contains the phrase "`and~$A$ is the ring~$\QQ$ of integers`". While I admit I'm not fully understanding everything, this seems likely to be an error. …
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_Book: Algebraic Number Theory, J. Neukirch_
_Document: Books/Neukirch/Neukirch.tex_
_Date: June 2021_
Exercise 1: okay, minor improvement: alpha \overline{alpha} is non-negative real.
Exerc…
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The current articles are mostly on number theory, not algebra as I understand it (either linear algebra or abstract algebra like rings, groups, etc. not needed until higher levels of CP)
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The documentation for number theory in the reference manual is a bit confusing. There is a section `Number Theory, Algebraic Geometry` in the index which lacks many integer related features (which a…
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Long-term issue [as requested](https://github.com/rschwiebert/dart_data/issues/50#issuecomment-1962413772) by @rschwiebert.
See the edit history for older batches (1, 2, 3: 9 Mar 2024; 4: 10 Apr 20…
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Add support for representation theory of finite semigroups. Quite some
stuff is available in the sage-combinat queue.
* #18230: basic hierarchy of categories for representations of monoids, lie alg…
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I've looked through several of the Coq formalizations, and one problem I see is the mixing of modules and idioms from different *overlapping* libraries, such as Coq's Stdlib, Coquelicot, and MathComp …
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lets use coq unimath to decribe a room design using sheaves of rings in analytical geometry
That sounds like a very challenging and interesting task. Coq is a proof assistant that allows you to wri…
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The `__init__` method of GroupAlgebra did not check for commutativity of the group so that this would happen:
```
sage: G = AbelianGroup(2)
sage: A = GroupAlgebra(G)
sage: A.is_commutative()
True
s…
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Hovering over the `Gᵣ` in the first `#check Gᵣ` in this code suggests that `G` is an explicit argument, even though `#check` tells me it is implicit.
```lean
import group_theory.subgroup
import dat…