8333 questions

Exterior face ring via Sage

• SimplicialComplex

representation of algebraic groups

• representation
• AlgebraicGeometry
• linear-algebra

Restricted matchings in simplicial complexes or graphs

• combinatorics
• graphs

total_space dimension?

• diff-geometry
• manifold

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

• nonlinear_system

An issue with integrals involving absolute value

207

views

1

answer

no

votes

2025-06-12 21:40:38 +0100 FrédéricC

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

160

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

Action of symmetric group

• graphs
• symmetric_group
• group_action
• combinatorics

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

• coercion
• finite-field

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

• finite-group
• group_theory
• order

170

views

1

answer

no

votes

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

symbolic summation with integer division

• symbolic-expression

Elliptic curve over Z modulo composite N

• Elliptic-curves

Groebner basis computation extremely slow

• grobner-basis
• parallelization
• computation_time

210

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

intersection of fractional ideal with subfield

• number_theory

How to make these histogram bars symmetric around its value?

• histogram
• 2Dplot

236

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

635

views

1

answer

1

vote

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

Coefficient overflow in PolynomialRing()

• polynomial
• PolynomialRing
• singular
• coefficient
• multivariate

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

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

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

Finding a spanning subgraph that satisfies a given condition

• graphtheory

Test if a graph is vertex pancyclic

• graph
• graphtheory

1k

views

1

answer

no

votes

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

frac is negative when argument is less than zero

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

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

240

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

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

• matroid
• contraction
• bug