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DVD
  • Member for 10 years, 11 months
  • Last seen more than 3 years ago
31 votes

How to represent the floor function using mathematical notation?

8 votes

Is the axiom of choice really all that important?

7 votes

For a symmetric matrix, the geometric and algebraic multiplicities are equal

5 votes

Advocating base 12 number system

4 votes

Why is it that this gives a good approximation of $\pi$?

3 votes

Recreational problems in set theory?

3 votes

Divide by a number without dividing.

3 votes

Killing a butterfly with a bazooka

2 votes
Accepted

Determinants of products of binary matrices and binomial coefficients

2 votes

number of solutions to an equation?

2 votes

Positive semidefiniteness of a block matrix of positive semidefinite matrices

2 votes

Matrix Determinant Identity

2 votes

Trees with vertex set

2 votes

How do you correctly reason that this directed graph is acyclic?

1 vote
Accepted

Product of binary matrices with binary eigenvalues

1 vote
Accepted

System of periodic equations and Floquet multiplier

1 vote
Accepted

On the Hex/Nash connection game theorem

1 vote
Accepted

Analytic function in open unit disc.

1 vote

Are there any nontrivial examples of contradictions arising in non-foundational or applied math due to naive set theory?

1 vote

What is the importance of eigenvalues/eigenvectors?

1 vote

Reference suggestion: eigenvalues of tridiagonal matrices

1 vote

Trace of a matrix

1 vote

Closed form of a recurrence relation using generating functions

1 vote

Relationship between connectedness and continuity

1 vote

How to find basis for an image of a subset under a transformation?

1 vote

Is there a geometric relationship between plane geometry and polynomials?

0 votes
Accepted

How to write a point on an ellipse using r and theta

0 votes

How to prove Chebyshev–Gauss quadrature integrate polynomial of degree less than $2n-1$ exactly

0 votes

Find all functions that are analytic on the closed disk and that satisfy

0 votes

Derivative of a ratio of geometric series