12735 questions

How big can be the multiprojective variety for which Macaulay2 can calculate irreducible components and check their smoothness?

• Algebraic-geometry
• commutative-algebra
• Macaulay2
• complexity
• projective-geometry

Cannot import name "Category"

• ImportError
• vscode
• python
• ubuntu
• errors

LLL reduced basis

• lattices

Clearing/creating a ring in a loop?

17k

views

1

answer

no

votes

2025-08-11 07:22:34 +0100 John Palmieri

Multiplication in Polynomial Rings

• rings
• QuotientRing
• multiplication

Algorithm for listing minimal directed cuts and minimal dijoins

• directed-graphs
• algorithm

How to find the graph(s) with a perfect matching from the following collection whose adjacency spectral radius is maximum?

Sagemath in Docker cannot access host files

• Docker

How to get an echelon form of a matrix on any given column indices?

10k

views

1

answer

1

vote

2025-08-07 15:43:41 +0100 rburing

Knot Theory Gauss Code?

• knot-theory

polycyclic presentation

• abelian_group
• class_group

Equivalent of Mathematica's GraphicsComplex

• texture
• 3dplotting
• mathematica

Unable to access jupyter sagemath

• token
• login

Possible bug? Matroid contraction when creating a matroid from Matroid() by giving flats.

• matroid
• contraction
• bug

3k

views

1

answer

no

votes

2025-07-29 08:47:21 +0100 FrédéricC

Is there an easy way to carry out multivariate power series reversion in Sage?

• formal-power-series
• reversion

3k

views

1

answer

no

votes

2025-07-22 19:29:24 +0100 John Palmieri

How to extract coordinate tuples of homology generators from a simplicial complex?

• SimplicialComplex
• homology

Matroid.is_valid() returns True for invalid matroid

• bug
• matroid
• combinatorics

322

views

1

answer

no

votes

2025-07-23 04:01:38 +0100 John Palmieri

Bug report: non-unit differential yields wrong homology when using generators=True and base_ring=QQ

• bug
• homology
• chaincomplex
• QQ
• generators

1k

views

no

answers

no

votes

2025-07-15 20:49:32 +0100 Max Alekseyev

Does is_permutation_equivalent work well for nonbinary codes?

• Code
• equivalence
• codingtheory
• bug

Finding a spanning subgraph that satisfies a given condition

• graphtheory

Alternative to using ButtonBar in SageMath (interact)

• interact
• buttons
• selector
• jupyter-notebook

1k

views

1

answer

no

votes

2025-07-15 00:31:06 +0100 John Palmieri

frac is negative when argument is less than zero

For a given elliptic Weirestrass curve having a prime degree, how to create a Weil Descent ?

• Elliptic-curves
• hyperelliptic-curve

Initialize a new metric after a change of coordinates

• metrics
• riemanntensor
• general-relativity

What’s the equivalent of this py_ecc code for untwisting the bn128 curve in SageMath ?

• finite-fields
• finite-field
• EllipticCurve
• twisted

283

views

1

answer

no

votes

2025-07-05 09:05:33 +0100 rburing

How do I declare a static finite field Element when modulus is a prime power ?

• finite-field
• finite-fields

671

views

1

answer

1

vote

2025-07-05 11:28:31 +0100 rburing

Coefficient overflow in PolynomialRing()

• polynomial
• PolynomialRing
• singular
• coefficient
• multivariate

How to make these histogram bars symmetric around its value?

• histogram
• 2Dplot

intersection of fractional ideal with subfield

• number_theory

Elliptic curve over Z modulo composite N

• Elliptic-curves