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This ticket makes the point homset iterable. This is useful to access the set of points on a toric variety over a finite field
```
sage: P123 = toric_varieties.P2_123(base_ring=GF(3))
sage: list(P1…
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The doctest in `src/sage/schemes/toric/sheaf/klyachko.py` does produce an error on some random seeds:
```
sage: set_random_seed(151058820726654196682836430928254760259)
sage: P1 = toric_varieties.P…
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We should follow affine and projective space and put the implementation of algebraic subschemes into `algebraic_scheme.py`, the morphisms into `morphism.py`, and homsets into `homset.py`. The attach…
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This ticket provides more morphisms that are associated to toric varieties:
* embedding of an orbit closure
* embedding of a fiber of a toric morphism
* pull-back of divisors
Use the git branch!
D…
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The goals of this ticket are:
* make the code of `LatticePolytope` less interdependent for easier maintenance and backend switch;
* use `PointCollection` container internally to unify it with other …
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This patch implements
* the Spec of affine toric varieties.
* patches for algebraic schemes with singular ambient toric varieties
In particular, Sage can now compute the dimension and smoothness f…
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The methods `span` and `span_of_basis` of `ToricLattice_generic` should work when given a `base_ring` and such a `base_ring` must be given whenever the elements of the basis are not integers.
This …
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A bug in containment for multivariate polynomial rings:
```
sage: A1. = PolynomialRing(QQ)
sage: 3 in A1
True
sage: A2. = PolynomialRing(QQ)
sage: 3 in A2
False
sage: A1(a) in A2
False
```
This…
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```
sage: cm = sage.structure.element.get_coercion_model()
sage: cm.bin_op(GF(5)['x'].gen(), 7, operator.div).parent()
Fraction Field of Univariate Polynomial Ring in x over Finite Field of size 5
…
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The closure of the torus orbit associated to a cone of the fan is again a toric variety. This patch implements a method `toric_variety.orbit_closure(cone)` to construct this toric variety.
**Apply:…