12636 questions

Check if a graph admits a separating 3-cycle.

• graph-theory

Multivariate polynomial cannot be evaluated at vector despite length being correct

• multivariate
• polynomial
• TypeError

35

views

no

answers

no

votes

2025-06-13 07:17:55 +0200 FrédéricC

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

• modular_forms
• EllipticCurve

85

views

1

answer

no

votes

2025-06-12 21:40:38 +0200 FrédéricC

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

An issue with integrals involving absolute value

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

144

views

1

answer

1

vote

2025-06-02 12:42:18 +0200 Max Alekseyev

How to list weak compositions?

• compositions

64

views

1

answer

1

vote

2025-06-02 01:20:40 +0200 Max Alekseyev

How to handle a root of unity with symbolic exponents [closed]

• roots-of-unity
• CyclotomicField
• symbolic-variables

Find a minimum (A, B)-vertex separator

• graphtheory

representation of algebraic groups

• representation
• AlgebraicGeometry
• linear-algebra

Exterior face ring via Sage

• SimplicialComplex

In sagetex, how to avoid italic font for sagecommandline environment within an italic example environment?

• sagetex

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

• rsquared
• regression
• linear_regression

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

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

Is multiplication cached?

• algebra
• cached

Type error using PIL - Integer doesn't support round method

• round
• method

3d graphics not rendering in Jupyter notebook

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

knot theory alternatives to sage?

• knot
• theory
• skein
• plot

Obtaining Betti numbers in Sage

• CommutativeAlgebra

"ModuleNotFoundError" après "import"

Uniqueness of an integer solution to a nonlinear polynomial system with integer coefficients

• nonlinear_system

150

views

2

answers

no

votes

2025-05-14 07:44:43 +0200 FrédéricC

Output of RootedTrees()

• OrderedTree
• combinatorics
• digraphs
• output
• graph-algorithm

Manipulate symbolic vector expressions?

• vector
• expression
• symbolic
• oject

Option to compile without any system package

Get the small group id of the Heisenberg group over F_2[x]/(x^2)

• finite-group
• group_theory
• order

Licenses and installation methods on mac os

• license

Parent with different (related) Elements

95

views

1

answer

1

vote

2025-05-07 19:54:46 +0200 Max Alekseyev

An error occurred while reading a graph in Plantri format.

• graphtheory