12692 questions

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

• matroid
• contraction
• bug

3k

views

1

answer

no

votes

2025-07-29 08:47:21 +0200 FrédéricC

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

• formal-power-series
• reversion

109

views

1

answer

no

votes

2025-07-23 04:01:38 +0200 John Palmieri

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

• bug
• homology
• chaincomplex
• QQ
• generators

3k

views

1

answer

no

votes

2025-07-22 19:29:24 +0200 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

1k

views

no

answers

no

votes

2025-07-15 20:49:32 +0200 Max Alekseyev

Does is_permutation_equivalent work well for nonbinary codes?

• Code
• equivalence
• codingtheory
• bug

1k

views

1

answer

no

votes

2025-07-15 00:31:06 +0200 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

Initialize a new metric after a change of coordinates

• metrics
• riemanntensor
• general-relativity

For a given elliptic Weirestrass curve having a prime degree, how to create a Weil Descent ?

• Elliptic-curves
• hyperelliptic-curve

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

• finite-fields
• finite-field
• Elliptic-curves
• Elliptic_curve
• twisted

534

views

1

answer

1

vote

2025-07-05 11:28:31 +0200 rburing

Coefficient overflow in PolynomialRing()

• polynomial
• PolynomialRing
• singular
• coefficient
• multivariate

82

views

1

answer

no

votes

2025-07-05 09:05:33 +0200 rburing

How do I declare a static finite field Element when modulus is a prime power ?

• finite-field
• finite-fields

How to make these histogram bars symmetric around its value?

• histogram
• 2Dplot

intersection of fractional ideal with subfield

• number_theory

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

• sagetex

84

views

1

answer

1

vote

2025-07-01 22:11:55 +0200 rburing

How to evaluate composed rational maps over finite fields?

• finite-field
• rational-function

Groebner basis computation extremely slow

• grobner-basis
• parallelization
• computation_time

Elliptic curve over Z modulo composite N

• Elliptic-curves

95

views

1

answer

no

votes

2025-06-26 01:59:09 +0200 Max Alekseyev

Using the "solve" function in a field extension

• algebraic_equations
• extension-field
• variety

489

views

1

answer

2

votes

2025-06-26 01:56:03 +0200 Max Alekseyev

How to find the graphs from the following collection whose adjacency spectral radius is maximum?

77

views

1

answer

no

votes

2025-06-25 16:34:43 +0200 Max Alekseyev

symbolic summation with integer division

• symbolic-expression

Does anyone enter a conjecture of mine about the topological game of Hex in the Langlands program by quoting me? [closed]

• topology
• hex
• computing

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

• finite-group
• group_theory
• order

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

• coercion
• finite-field

factorization of sum of fractions in the ring of Laurent polynomials

• LaurentPolynomial
• FractionFieldElement
• libSingular
• factorization
• gcd

Action of symmetric group

• graphs
• symmetric_group
• group_action
• combinatorics