## Moderator | |
---|---|

real name | Ricardo Buring |

member since | 2018-06-29 19:08:42 +0200 |

last seen | 2024-09-09 00:37:38 +0200 |

website | https://www.rburing.nl/ |

location | Orsay, France |

age, years | 32 |

todays unused votes | 30 votes left |

Experimental mathematics researcher at Inria Saclay.

Ph.D. from Johannes Gutenberg-Universität Mainz, Germany.

1235

8

- algebra× 46
- PolynomialRing× 44
- polynomial× 41
- groebner_basis× 40
- polynomials× 31
- ideal× 28
- equations× 24
- finite-field× 24
- symbolic× 21
- finite-fields× 21
- confirmed_issue× 19
- matrices× 16
- linear-algebra× 16
- calculus× 15
- matrix× 15
- solve× 15
- sagemanifolds× 13
- coercion× 12
- latex× 11
- conversion× 11
- rings× 11
- plot× 10
- function× 10
- combinatorics× 10
- division× 10
- list× 10
- EllipticCurve× 10
- CyclotomicField× 10
- extension-field× 10
- Elliptic-curves× 10
- equation× 9
- lift× 9
- graph× 8
- determinant× 8
- graph-theory× 8
- simplify× 7
- graphics× 7
- bug× 7
- error× 7
- derivative× 7
- vectors× 7

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1 ● Autobiographer
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● Teacher × 1 ● Enthusiast × 1

● Associate Editor × 1 ● Commentator × 1 ● Civic Duty × 1

● Citizen Patrol × 1 ● Guru × 2 ● Great Answer × 2

● Scholar × 1 ● Enlightened × 1 ● Organizer × 1

● Student × 1 ● Self-Learner × 2 ● Notable Question × 2

● Good Answer × 69

● Popular Question × 2

● Teacher × 1 ● Enthusiast × 1

● Associate Editor × 1 ● Commentator × 1 ● Civic Duty × 1

● Citizen Patrol × 1 ● Guru × 2 ● Great Answer × 2

● Scholar × 1 ● Enlightened × 1 ● Organizer × 1

● Student × 1 ● Self-Learner × 2 ● Notable Question × 2

● Good Answer × 69

- is this a bug?
- round function for matrices ?
- How to divide two polynomials in GF(2)[x] and get result in same type as of operands
- sol = solve([x^2+y^2+z^2==2, x^3+y^3+z^3==2,x^4+y^4+z^4==2], x,y,z)
- Trigonometric System of Quadratic Equations
- Finding all digraphs up to isomorphism for a given undirected graph using Sage
- submit a job to a supercomputer using slurm
- Unable to use substitute_function in SageManifolds
- How is "is_irreducible" function implemented in SAGE
- GB for I=ideal(x^3-3*x^2-y+1,-x^2+y^2-1) leaves out a further step.
- discrete_log?!
- Solve much slower than Mathematica for simple system
- Polynomial division in quotient rings?
- Finding a unique integer solution to a set of inequalities
- SageMath plot: Axis label only partly in LaTeX style. Why?
- G-circulant matrices
- Use expression.find with SR.wild in python scripts
- How to plot changes as a result of a parameter?
- Polynomial Substitution for only higher terms
- Define morphism of Q[i,w] in terms of i and w
- How to check that field is Number Field
- how to bold and embiggen variable using latex_name
- Problem by finding an integral
- how to define symbolic function on functions?
- Quick (trivial) Groebner basis but too long lift of one
- Groebner basis step by step
- How to create a 3D plot of a parametric equation that requires 3 variables?
- Obtaining the immanent associated to a partition
- Why am I getting a type error when I attempt to take the projective closure of this intersection?
- matrix_plot not returning any outputs in subroutines
- Cannot evaluate symbolic expression to a numerical value
- Is this a bug or intended behavior?
- How can I add arbitrary text to a Graph object
- ChainComplex() runs 24 times slower than homology()
- Substituting a differential equation into an expression
- Subtitute functions - in a differential equation - Sagemanifold
- Sagemanifold - `only_nonredundant = True` by default
- Roots of multivariable polynomials with respect to one variable?
- Extended Sage examples
- Bug in computing sum (of binomials)
- Basis of quotient ring as a vector space
- Calculating Milnor Numbers of Polynomials Using Singular via Sage
- Evaluate polynomial expression on matrices
- Iterator: amazing behavior
- Memory usage strictly increasing on Sage interactive shell
- Evaluating polynomials in Z[x] at roots of unity.
- is it possible to round numbers in symbolic expression
- Arrow length goes wild near poles in vector field plot
- vector constants and vector functions
- Automorphism group of weighted graph
- Running Sage in command-line
- What is sage equivalent to Pow in Sympy?
- The number of solutions of a polynomial system using a Gröbner basis
- I'm having trouble plotting this population differential equation with five particular solutions all on the same graph. Please help.
- meta-question: post formatting
- How do I retrieve the variables that appear in a polynomial?
- Trigonometric equation solving
- How to correctly plot x^(1/3)
- Find expansion of polynomial in an ideal
- Escape characters for LaTeX
- solve() simple equ, something is missing ?
- Show both sides of a function definition
- exact computations with algebraic numbers
- No Output Given : []
- ask.sagemath.org Y2k20 bug
- How to force numerical coefficients for non-polynomials?
- Defining 4jm Wigner symbols
- Is there a reliable way to check if an object is a vector?
- How to call a constant polynomial with lift()?

- How can I create a proper **dense** PolynomialRing over any ring?
- The canonical labels in SageMath are different from those in nauty.
- I cannot take sqrt of units
- How to add a condition in the sum function in sage
- is this a bug?
- round function for matrices ?
- Implement Weight Orders
- How can I manipulate Clifford Algebra elements symbolically?
- Determine Two quadratic form is integer congruence (rational equivalent)?
- How to divide two polynomials in GF(2)[x] and get result in same type as of operands
- Cannot index an array - causing key error , context astropy.io
- Problems with memory usage with bliss algorithm
- Using vector with variables over a finite field
- Displaying a matrix with scalar fields
- sol = solve([x^2+y^2+z^2==2, x^3+y^3+z^3==2,x^4+y^4+z^4==2], x,y,z)
- Trigonometric System of Quadratic Equations
- Python class for the ring $\mathbb{Z}[\sqrt{d}]$ ?
- Can the bytes returned by pynauty's "certificate" function be converted into a graph format readable by Sage?
- How to get a field extension by adjoining elements
- Multiline string eats LaTeX tags due to backslash
- How to define a matrix with variables in SageMath?
- Correct syntax for "solve(f.derivative(x1,x2)==(0,0))"
- Constructing total graph
- Finding all digraphs up to isomorphism for a given undirected graph using Sage
- Multiply Arbitrary Permutations
- ExtGCD in Finite Fields
- How to make a list of polynomials callable?
- Append Set to Set
- submit a job to a supercomputer using slurm
- How is "is_irreducible" function implemented in SAGE
- Contour Plot of 1/(2*pi*sqrt(x^2 + y^2)), why is it square? How to fix it?
- How to construct a condition on the family name of a variable without notice to its index
- GB for I=ideal(x^3-3*x^2-y+1,-x^2+y^2-1) leaves out a further step.
- Can I expand a composite function symbolically in sage
- discrete_log?!
- Solve much slower than Mathematica for simple system
- How to define group actions on sagemath?
- reduce() for fraction field elements
- A question about definition of a polynomial ring.
- Finding a unique integer solution to a set of inequalities
- G-circulant matrices
- tutte_polynomial (sage, matroid theory) gives the wrong result
- SageMath plot: Axis label only partly in LaTeX style. Why?
- How to recover indices ?
- nice font in "table"
- displaysing show(f) in some color
- Volume Automatically Getting Rounded?
- Getting the trace polynomial
- Differentiate vector field w.r.t a variable not defining the chart
- Use expression.find with SR.wild in python scripts
- How to plot changes as a result of a parameter?
- Polynomial Substitution for only higher terms
- Define morphism of Q[i,w] in terms of i and w
- Compute minimal number of generators of subring
- Plot the solution of a system of equations
- Computing Ray class numbers?
- How to check that field is Number Field
- differential equation
- how can I manipulate a multiplicative group of Zmod(n)
- Verbose option for interreduced_basis() function?
- Building a homomorphism from group algebra to matrix space
- Problem by finding an integral
- how to define symbolic function on functions?
- solving for the center of the real quaternions
- how to bold and embiggen variable using latex_name
- Quick (trivial) Groebner basis but too long lift of one
- Factoring a cyclotomic polynomial mod p
- Singularity Type
- Groebner basis step by step
- How to create a 3D plot of a parametric equation that requires 3 variables?
- Obtaining the immanent associated to a partition
- matrix_plot not returning any outputs in subroutines
- Cannot evaluate symbolic expression to a numerical value
- possible bug: kernel of ring homomorphism
- How to obtain the graph having highest algebraic connectivity?
- Why am I getting a type error when I attempt to take the projective closure of this intersection?
- Plotting polynomials defined over a number field
- Automorphism group of weighted graph
- integrate results that are different from using maxima
- Elements of the Stanley-Reisner ring
- Words avoiding patterns
- Solving a differential equation - From SageManifold
- Algorithm for computing Class Group and Class Number?
- vector constants and vector functions
- Solving Groebner Basis of an ideal that includes parameters with order=lex yields non triangular equations
- Print symbolic variables like a_1 in A[1] style
- desolve initial condition involving e gives strange answer
- Valuation error when composing power series
- Strange factoring in e = (x+1)^3*(x+2)^3*(x+3)^3*(x+4)^3
- ChainComplex() runs 24 times slower than homology()
- Substituting a differential equation into an expression
- 1^1 undefined
- Express the derivative in the Hamiltonian operator in sage
- Determining Elliptic Curve Components
- Subtitute functions - in a differential equation - Sagemanifold
- Sagemanifold - `only_nonredundant = True` by default
- numerical_approx()
- How to make points smaller than size 1 in point3d?
- Conversion from symbolic expression to polynomial stuck
- How to express unknown coefficients in GF(2^8)?
- Roots of multivariable polynomials with respect to one variable?
- On function quo_rem
- Sage not detecting integers in Boolean Polynomial Ring?
- How to display complex numbers with real part before imaginary part?
- Kernel not found?
- Combine plots with built-in Maxima, trajectory in Sage available?
- Extended Sage examples
- show all view with same x size of Hanoi's Towers
- Bug in computing sum (of binomials)
- Basis of quotient ring as a vector space
- No Output Given : []
- Solving systems of congruences with Gaussian integers
- when plot()ing, where can i call .lower() and .upper() in order to get the band of uncertainty?
- Calculating Milnor Numbers of Polynomials Using Singular via Sage
- Class returning coordinates of iteration maps in a dynamical system
- Evaluate polynomial expression on matrices
- Count number of ones in a set of matrix
- Eigenvalues over symbolic ring
- Iterator: amazing behavior
- How to compute the sums of squares of elements of a quotient ring?
- Memory usage strictly increasing on Sage interactive shell
- interactive tutorial?
- Evaluating polynomials in Z[x] at roots of unity.
- is it possible to round numbers in symbolic expression
- Arrow length goes wild near poles in vector field plot
- Factoring modulo prime ideal
- What can i do about this large boolean function?
- Writing code in Notepad and copy pasting to SageMath
- Rearranging expressions to minimize negative signs
- Putting label in the right spot (upper-left) during animation
- How to put background color behind animation
- Graphs having highest second smallest laplacian eigen value from a collection
- Formal determinant of symbolic matrix
- Adding elements to a set
- How to turn the function into expression?
- Defining manifolds in a systematic way.
- Create Matrix in RREF with indeterminates
- Incorrect Eigenvalues/Eigenvectors
- Plotting a LabelledOrderedTree with duplicate labels
- Checking identity of two combinatorial expressions
- Is this a bug or intended behavior?
- Button to copy SageMath cell to clipboard
- Verma modules and accessing constants of proportionality
- Why SageMath cannot inverte this matrix?
- How can I define a field of numbers by hitting to the field of rationals two roots of the same polynomial ?
- Running Sage in command-line
- can you programmatically define a [mathematical] function?
- What is sage equivalent to Pow in Sympy?
- how find the operator type in general for an expression
- Unable to use substitute_function in SageManifolds
- Testing whether polynomial is in algebra of other polynomials
- how to best simplify/factor symbolic expressions
- symmetric group: get back conjugacy class from its generators
- The number of solutions of a polynomial system using a Gröbner basis
- Compute Groebner basis of real polynomials
- Acess bracked elements in free lie algebra element?
- I'm having trouble plotting this population differential equation with five particular solutions all on the same graph. Please help.
- meta-question: post formatting
- Why doesn't show() render latex properly?
- intersection of two free submodules
- Displaying Chessboard Graphs
- Problem with UniversalCyclotomicField?
- Some code gives error in sagemath 9 but OK in 8.9
- Problem with plotting "lambda" functions
- How do I retrieve the variables that appear in a polynomial?
- Polynomial ring with a number (to be determined) of variables
- Trigonometric equation solving
- Polynomial division in quotient rings?
- Passing Sage functions to Singular
- Why is SageMath fail to generate elements in finite field $GF(3^{15})$
- How to factorise a quantity obtained after summing?
- Compute dimension of vector subspace
- How to correctly plot x^(1/3)
- Find expansion of polynomial in an ideal
- Escape characters for LaTeX
- Navigation inside a notebook
- Why does Sage say my Groebner basis is 1?
- Toric Ideal of Point Configuration Yielding Whole Ring?
- Show both sides of a function definition
- solve() simple equ, something is missing ?
- ask.sagemath.org Y2k20 bug
- Coefficient of Polynomial of Differential Forms and displaying List for differential forms
- list_plot only showing one axis
- How to define an integral to not be evaluated
- exact computations with algebraic numbers
- substitute complex number form in a function
- how to render a latex string in a notebook cell
- extract coefficients from products and sums of descending products
- A 2-codim polynomial ideal of normal-basis [0], meaning?
- Inconsistency with Groebner basis
- Changing Parent on multivariable polynomial ring
- How to express elements in a field of prime order and power of a prime order using the same function?
- Which subgroups do conjugacy_classes_subgroups() return
- How to force numerical coefficients for non-polynomials?
- Defining 4jm Wigner symbols
- Translating GAP-output into sage for lattices
- Is there a reliable way to check if an object is a vector?
- assignment vs. subs()
- How can I add arbitrary text to a Graph object
- Plot velocity and acceleration vectors of a space curve
- How to call a constant polynomial with lift()?
- RuntimeError Groebner basis for a Boolean system

- how to find standard monomials of an Ideal?
- how to define symbolic function on functions?
- possible bug: kernel of ring homomorphism
- solve with "excess" equations

● Popular Question × 2

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