Is there a computable function that, given a positive rational number $\epsilon$ and a rectangle with rational corners $A$ returns a number $f(A,\epsilon)$ such that $|\mu(A \cap M)-f(A,\epsilon)|\lt\epsilon$, where $M$ is the Mandelbrot set and $\mu$ is Lebesgue measure?
2026-04-01 16:01:42.1775059302
Is the measure induced by the Mandelbrot set computable on rational rectangles?
378 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail At
1
There are 1 best solutions below
Related Questions in MEASURE-THEORY
- On sufficient condition for pre-compactness "in measure"(i.e. in Young measure space)
- Absolutely continuous functions are dense in $L^1$
- I can't undestand why $ \{x \in X : f(x) > g(x) \} = \bigcup_{r \in \mathbb{Q}}{\{x\in X : f(x) > r\}\cap\{x\in X:g(x) < r\}} $
- Trace $\sigma$-algebra of a product $\sigma$-algebra is product $\sigma$-algebra of the trace $\sigma$-algebras
- Meaning of a double integral
- Random variables coincide
- Convergence in measure preserves measurability
- Convergence in distribution of a discretized random variable and generated sigma-algebras
- A sequence of absolutely continuous functions whose derivatives converge to $0$ a.e
- $f\in L_{p_1}\cap L_{p_2}$ implies $f\in L_{p}$ for all $p\in (p_1,p_2)$
Related Questions in COMPUTABILITY
- Are all infinite sets of indices of computable functions extensional?
- Simple applications of forcing in recursion theory?
- Proof of "Extension" for Rice's Theorem
- How to interpret Matiyasevich–Robinson–Davis–Putnam in term of algebraic geometry or geometry?
- Does there exist a weakly increasing cofinal function $\kappa \to \kappa$ strictly below the diagonal?
- Why isn't the idea of "an oracle for the halting problem" considered self-contradictory?
- is there any set membership of which is not decidable in polynomial time but semidecidable in P?
- The elementary theory of finite commutative rings
- Is there any universal algorithm converting grammar to Turing Machine?
- Is the sign of a real number decidable?
Related Questions in FRACTALS
- does the area converge?
- "Mandelbrot sets" for different polynomials
- Is the Mandelbrot set path-connected?
- Does the boundary of the Mandelbrot set $M$ have empty interior?
- What sort of function is this? (Logistic map?)
- effective degree for normalized escape-time of hybrids
- Julia set of $x_n = \frac{ x_{n-1}^2 - 1}{n}$
- Given a real number $d , (1<d<2)$, is there a fractal with fractal dimension $d$?
- How can one write a line element for non-integer dimensions?
- What does the Mandelbrot set look like with holes?
Trending Questions
- Induction on the number of equations
- How to convince a math teacher of this simple and obvious fact?
- Find $E[XY|Y+Z=1 ]$
- Refuting the Anti-Cantor Cranks
- What are imaginary numbers?
- Determine the adjoint of $\tilde Q(x)$ for $\tilde Q(x)u:=(Qu)(x)$ where $Q:U→L^2(Ω,ℝ^d$ is a Hilbert-Schmidt operator and $U$ is a Hilbert space
- Why does this innovative method of subtraction from a third grader always work?
- How do we know that the number $1$ is not equal to the number $-1$?
- What are the Implications of having VΩ as a model for a theory?
- Defining a Galois Field based on primitive element versus polynomial?
- Can't find the relationship between two columns of numbers. Please Help
- Is computer science a branch of mathematics?
- Is there a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
- Identification of a quadrilateral as a trapezoid, rectangle, or square
- Generator of inertia group in function field extension
Popular # Hahtags
second-order-logic
numerical-methods
puzzle
logic
probability
number-theory
winding-number
real-analysis
integration
calculus
complex-analysis
sequences-and-series
proof-writing
set-theory
functions
homotopy-theory
elementary-number-theory
ordinary-differential-equations
circles
derivatives
game-theory
definite-integrals
elementary-set-theory
limits
multivariable-calculus
geometry
algebraic-number-theory
proof-verification
partial-derivative
algebra-precalculus
Popular Questions
- What is the integral of 1/x?
- How many squares actually ARE in this picture? Is this a trick question with no right answer?
- Is a matrix multiplied with its transpose something special?
- What is the difference between independent and mutually exclusive events?
- Visually stunning math concepts which are easy to explain
- taylor series of $\ln(1+x)$?
- How to tell if a set of vectors spans a space?
- Calculus question taking derivative to find horizontal tangent line
- How to determine if a function is one-to-one?
- Determine if vectors are linearly independent
- What does it mean to have a determinant equal to zero?
- Is this Batman equation for real?
- How to find perpendicular vector to another vector?
- How to find mean and median from histogram
- How many sides does a circle have?
It is (as far as I know) an unsolved problem.
It is equivalent to asking if the area of the Mandelbrot set is computable. The connection is a follows: By doing some careful interval arithmetic based on the usual construction of the Mandelbrot set, we can enumerate an open cover of the exterior. After enumerating enough pixels, we would be able to account for all but $\epsilon$ of the area of the exterior, if we knew the area of the Mandelbrot set. Then we would be able to approximate any pixel's intersection with the Mandelbrot set with within $\epsilon$.
Now, while it is possible to directly calculate the Mandelbrot set area (we have a series formula, but not a rate of convergence for that series), it is also likely that this problem will be solved instead by solving two unknown problems of the Mandelbrot set: