8341 questions

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

353

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

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

295

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

707

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

Groebner basis computation extremely slow

• grobner-basis
• parallelization
• computation_time

289

views

1

answer

1

vote

2025-07-01 22:11:55 +0100 rburing

How to evaluate composed rational maps over finite fields?

• finite-field
• rational-function

231

views

1

answer

no

votes

2025-06-25 16:34:43 +0100 Max Alekseyev

symbolic summation with integer division

• symbolic-expression

Working with large finite fields of characteristic 2; how to coerce them?

• coercion
• finite-field

Action of symmetric group

• graphs
• symmetric_group
• group_action
• combinatorics

338

views

no

answers

no

votes

2025-06-13 07:17:55 +0100 FrédéricC

modular_form() hangs in sage 9.5 but works in older sage version

• modular_forms
• EllipticCurve

Is this type of nonlinear system known to factorize N ? What is the best way (computationally speaking) to solve it ?

• nonlinear_system

total_space dimension?

• diff-geometry
• manifold

Restricted matchings in simplicial complexes or graphs

• combinatorics
• graphs

An issue with integrals involving absolute value

representation of algebraic groups

• representation
• AlgebraicGeometry
• linear-algebra

Generating simplicial trees (equivalently, totally balanced hypergraphs) on $n$ vertices

• combinnatoric
• graph-theory
• hypergraphs
• algorithm
• SimplicialComplex

Is multiplication cached?

• algebra
• cached

287

views

1

answer

no

votes

2025-06-12 21:40:38 +0100 FrédéricC

Working with polynomials with non-commuting variables and symbolic rational coefficients

3d graphics not rendering in Jupyter notebook

• 3D-plots
• WSL
• jupyter-notebook
• threejs
• 3d_graphics

How to get coefficient of determination (r^2) in sagemath?

• rsquared
• regression
• linear_regression