8333 questions

232

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

Matroid.is_valid() returns True for invalid matroid

• bug
• matroid
• combinatorics

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

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

• matroid
• contraction
• bug

Unable to access jupyter sagemath

• token
• login

Equivalent of Mathematica's GraphicsComplex

• texture
• 3dplotting
• mathematica

polycyclic presentation

• abelian_group
• class_group

10k

views

1

answer

1

vote

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

Knot Theory Gauss Code?

• knot-theory

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

Sagemath in Docker cannot access host files

• Docker

Clearing/creating a ring in a loop?

LLL reduced basis

• lattices

Cannot import name "Category"

• ImportError
• vscode
• python
• ubuntu
• errors

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

problem using giac interface for integration in sagemath 10.6

• interface
• giac
• integral

17k

views

1

answer

no

votes

2025-08-22 19:04:49 +0100 Max Alekseyev

Recursive computation of a symbolic sum

• symbolic.expression
• summation
• recursion

formidable association Sagemath + IA Copilot In Edge explorer

• AI

Trying to install Sage on Mac OS, make stage failed

16k

views

1

answer

no

votes

2025-08-26 06:49:25 +0100 John Palmieri

How to check if a cycle in a simplicial complex is non-trivial?

• SimplicialComplex
• homology

How does sagemath solve X*a*b+Y*a+Y*b+Z mod N = 0 knowing X,Y,Z,N without factoring N? Is there a computationally efficient way to solve this?

• modular_equation

docker build implicitly assumes CPU features that I don't have

• Docker
• SIGILL

Error in building Sage from source

Solve command with assumptions

• solve
• inequality
• assumptions

sage -n can't find jupyter sagemath kernel

• Jupyter

Eigenvalues changing at only one position

10k

views

no

answers

1

vote

2025-09-11 18:54:44 +0100 AaronMcGarry

GAP error when calling is_isomorphic on large permutation groups

• gap
• group_theory

Irreducible characters of high order finite general linear groups?

• generallineargroup
• gap
• possible-bug

differential forms and calculus in Sage

• differential_form
• DifferentialForms

Change color of alcoves in root system

• coxeter3

SageMath-x86_64.AppImage on Ubuntu 25.04

• AppImage
• jmol
• plot3d