12681 questions

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

• SimplicialComplex
• homology

Trying to install Sage on Mac OS, make stage failed

21

views

1

answer

no

votes

0 years ago Max Alekseyev

Branching on type

• type
• number
• output

508

views

1

answer

no

votes

0 years ago Max Alekseyev

Recursive computation of a symbolic sum

• symbolic.expression
• summation
• recursion

formidable association Sagemath + IA Copilot In Edge explorer

• AI

problem using giac interface for integration in sagemath 10.6

• interface
• giac
• integral

Equivalent of Mathematica's GraphicsComplex

• texture
• 3dplotting
• mathematica

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?

Alternative to using ButtonBar in SageMath (interact)

• interact
• buttons
• selector
• jupyter-notebook

880

views

1

answer

no

votes

0 years ago John Palmieri

Multiplication in Polynomial Rings

• rings
• QuotientRing
• multiplication

Algorithm for listing minimal directed cuts and minimal dijoins

• directed-graphs
• algorithm

899

views

1

answer

1

vote

0 years ago rburing

Knot Theory Gauss Code?

• knot-theory

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

polycyclic presentation

• abelian_group
• class_group

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

Unable to access jupyter sagemath

• token
• login

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

• matroid
• contraction
• bug

909

views

1

answer

no

votes

0 years ago FrédéricC

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

• formal-power-series
• reversion

97

views

1

answer

no

votes

0 years ago John Palmieri

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

• bug
• homology
• chaincomplex
• QQ
• generators

904

views

1

answer

no

votes

0 years ago 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

Is there a simple way to deal with computing real nth roots for n a natural number?

• root
• function

806

views

no

answers

no

votes

0 years ago Max Alekseyev

Does is_permutation_equivalent work well for nonbinary codes?

• Code
• equivalence
• codingtheory
• bug

1k

views

1

answer

no

votes

0 years ago John Palmieri

frac is negative when argument is less than zero

Test if a graph is vertex pancyclic

• graph
• graphtheory

Finding a spanning subgraph that satisfies a given condition

• graphtheory