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3 votes
0 answers
16 views

How best to convert Tait-Bryan angles to Euler Angles? For VR Controller project.

2 votes
1 answer
27 views

Approximate $e^x$ with bounded-size sliding window over its Taylor series?

5 votes
0 answers
52 views

Does the functional equation $f(x)-f\left(x-\frac{x^2}3\right)=\frac{x}{3-x}-\log\left(\frac3{3-x}\right)$ define an analytic function?

1 vote
2 answers
33 views

Is the above definition in this book ok? ("Lecture Notes on Elementary Topology and Geometry" by I. M. Singer and J. A. Thorpe)

1 vote
0 answers
22 views

Heat equation using Fourier transform with IC equal to zero

1 vote
1 answer
12 views

Can one check if a map of infinite rank free modules is an isomorphism modulo the maximal ideal

2 votes
0 answers
20 views

Question on: it holds "trivially".

1 vote
0 answers
14 views

Find all polynomials $p(x) \in \mathbb{C}[x]$ such that $p(\mathbb{R}) \subset \mathbb R $ and $p(\mathbb{C - R}) \subset \mathbb{C - R }$.

1 vote
1 answer
27 views

Solve $e^{-x} < \frac{1}{x^2 + 1}$

1 vote
0 answers
18 views

Trouble understanding indexed sets

1 vote
1 answer
22 views

Why are the red parts of this expression present $\int_a^b \sqrt{g_{cd}\frac{dx^c}{\color{red}{d\lambda}}\frac{dx^d}{\color{red}{d\lambda}}}d\lambda$?

1 vote
1 answer
10 views

Computing $D_v^2(f)(x_0)$, if $f(x,y)=x^3+x+y^2-2y+1$, $v=\frac{1}{5}(3,4), x_0=(\frac{1}{3},1)$

0 votes
0 answers
11 views

$X_1,...,X_n$ is random sample of a population with $X\sim \text{UNIF}(0,1)$. Let $Y_n=\sum_{i=1}^n X_i$. Use Central Limit Theorem to...

1 vote
0 answers
7 views

Rewriting quadratic optimization problem with negative definite matrix

0 votes
0 answers
22 views

Suppose $(a^2+3ab+3b^2-1)$ divides $(a+b^3)$. Prove: $k^3$ divides $(a^2+3ab+3b^2-1)$

3 votes
3 answers
1k views

conditional probability - conditioned twice

1 vote
1 answer
35 views

Is it true that $\lim_{x\to\ 0} f(x)=A$ implies $\lim_{\frac{x}{2}\to\ 0} f(x)=A$?

2 votes
1 answer
81 views

Lemma 10.32 of Lee's Introduction to Smooth Manifolds

-1 votes
0 answers
25 views

Can we consider following definitions to be equivalent?

0 votes
0 answers
10 views

Let $R = F[X_1,..., X_n]$, where F is a field and the subalgebra $A = F[X_1, X_2/X_1,..., X_n/X_1]$ of the fraction field of R.

0 votes
0 answers
10 views

Extension of continuous maps to product space.

0 votes
2 answers
37 views

Does $\frac{x}{||x||}$ maximize inner product with $x$ among vectors of norm $1$?

2 votes
1 answer
57 views

Find all entire functions $f$ such that $|f(z)| \leq |\sin(z)|$

2 votes
1 answer
39 views

Were these hypercomplex number sets already defined in the literature for some $n\neq 3$? Are they associative?

0 votes
0 answers
7 views

How to use logical quantifies in a right-to-left language

1 vote
1 answer
32 views

Imaginary Numbers in the Ring of $p$ Adic Integers?

1 vote
1 answer
43 views

What's the expected number of pairs to arrange 9 cats and 8 dogs into 17 places on a row?

0 votes
0 answers
25 views

Taking Partial Derivatives of the function $F=F(\xi,\phi) \quad\text{where}\quad \xi=\frac{h}{h_*} \text{ and } \phi=\frac{\psi}{h}$.

1 vote
1 answer
23 views

Let $a$ and $b$ be integers and $m$ be a positive integer. Prove that $ab \equiv [(a\pmod m)\cdot(b\pmod m)] \pmod m$

1 vote
1 answer
18 views

How to calculate the height of subdividing lines of a conical frustum?

0 votes
1 answer
29 views

Can I prove that $\{(x,y):x<y\}$ and $\{a:\exists x\exists y(a=(x,y)\land x<y)\}$ are the same set?

0 votes
0 answers
16 views

How is $\sum_{n=1}^{n}(X_{i}-\mu)^2$ distributed?

0 votes
0 answers
9 views

Galois representation, Tate twist

0 votes
1 answer
17 views

Find dual linear program to modified Steiner tree problem

1 vote
1 answer
27 views

Arc lengths of parallel sections of spherical cap?

2 votes
1 answer
2k views

Approximating midpoint of a curve

2 votes
2 answers
29 views

Rotation of axes in arbitrary dimension

3 votes
0 answers
33 views

Random walk with a killing probability

6 votes
0 answers
100 views

Positive integer solutions of $ab+1=x^2, ac+1=y^2, bc+1=z^2, x+z=2y$

1 vote
0 answers
14 views

Ways to find the sum of complex roots with only positive imaginary parts?

0 votes
1 answer
30 views

Probability of two persons predicting cricket score correctly.

1 vote
1 answer
16 views

Properties of the $L^2$ dual realizing test functions as distributions

0 votes
0 answers
7 views

Calculating composition of quadratic forms with discriminant of form $-4n$

1 vote
0 answers
13 views

Showing that the Lie-algebra of $G \subset SL(V)$ is semisimple and irreducible on $V$.

0 votes
0 answers
33 views

Relationship Between "Transition Probabilities" and "Order Statistics"

0 votes
0 answers
9 views

Definition of $Ad(r)$ the automorphism of a Lie-algebra $\mathfrak{g}$ of $G \subset SL(V)$.

1 vote
0 answers
19 views

How to find the closest two point given a point on an polygon?

0 votes
0 answers
15 views

Pattern Recognition and Machine Learning Exercise 3.6

1 vote
1 answer
21 views

Non atomic ring example

1 vote
0 answers
12 views

Number of components of topological space

0 votes
0 answers
11 views

Proof that additive measure on a semi-algebra can be extended to an additive measure on corresponding algebra

0 votes
1 answer
27 views

Rewriting partial derviative $\partial f^{-1}/\partial x$ with respect to another variable

3 votes
1 answer
90 views

Random walk on a slippery slope

0 votes
1 answer
16 views

Linear transformation of skew-symmetric block matrix

0 votes
0 answers
23 views

Is there a squeeze theorem analog for minimizers?

3 votes
1 answer
909 views

How to Take Dot Product of a Vector and a Bivector

2 votes
0 answers
19 views

Coarse moduli space for semi-stable vector bundles on a curve.

0 votes
0 answers
10 views

What are the possible bounds on the norm of a vector with respect to positive definite matrix?

0 votes
0 answers
17 views

Does convergence of every sequential limit "along a path" imply "convergence of the path"?

0 votes
0 answers
16 views

Why life expectancy calculate as 1/μ in SIR model?

1 vote
1 answer
27 views

Is this property always or never satisfied when $R=N$?

1 vote
0 answers
41 views

When two functions touch

1 vote
1 answer
19 views

Smith Normal forms in a polynomial ring

2 votes
1 answer
26 views

Understanding an example of forcing

3 votes
1 answer
49 views

Prove or disprove: $\frac{a_{\lceil a_n\rceil}}{a_n} \rightarrow \infty$

3 votes
0 answers
39 views

Explanation regarding determinant derivation

0 votes
0 answers
18 views

A Question about norm equality

1 vote
0 answers
16 views

(complex)Let $f: D \subset \mathbb R^2 \to \mathbb R^2$ be a function defined on an open subset $D \subset \mathbb R^2$...

0 votes
0 answers
4 views

Dilation Properties of the Discrete Fourier Transform

4 votes
1 answer
76 views
+50

Prove that a bounded nondecreasing function is differentiable Lebesgue-almost everywhere

1 vote
1 answer
14 views

A Lemma Regarding $C^\ast$-algebras (states)

1 vote
0 answers
14 views

Reference request: A specific book on homotopy and covering spaces

0 votes
0 answers
9 views

When is a subset Lebesgue measurable?

0 votes
1 answer
14 views

Lower bound for Probability of Maximum of Normal Variables

0 votes
0 answers
9 views

Reference for $X' = \{ \lambda ||\cdot||'(x) : \lambda \in \mathbb R,\quad x \in X \setminus \{ 0 \} \}$

1 vote
1 answer
38 views

What numerical scheme could I use to solve this integral equation?

3 votes
1 answer
19 views

Adjoint of a linear mapping mapping into a product of Banach Spaces

1 vote
0 answers
27 views

$x_1x_2x_3x_4 > y_1y_2y_3y_4 \implies x_1+x_2+x_3+x_4 > y_1+y_2+y_3+y_4$

3 votes
3 answers
53 views

Differentiability of a piecewise defined discontinuous function

1 vote
0 answers
28 views

Filtered colimits in the category of toposes and logical morphisms

0 votes
0 answers
14 views

About the integral domain $R=\{\frac{a}{b}\in\mathbb{Q}|(b,2)=(b,3)=1\}$

2 votes
2 answers
56 views

Linking the "Formal Definition of Convexity" to the "Informal Definition of Convexity"

0 votes
0 answers
17 views

A common, ambiguous matrix operation (flanking matrices)

1 vote
1 answer
29 views

Why are there so many algorithms for solving a system of linear equations?

2 votes
0 answers
40 views

showing $\lim\limits_{t\to 0} I(t) = 0$ and determining $\lim\limits_{t\to\infty} I(t)$

0 votes
0 answers
13 views

Equivalent definitions of a Liouville number

1 vote
0 answers
22 views

Finding an estimation for a term using step functions

1 vote
0 answers
25 views

Example $14.18$ out of Lee's Intro to smooth manifolds

3 votes
0 answers
42 views

Do linearly independent vector fields with vanishing Lie bracket always have integral manifolds which are level sets?

1 vote
0 answers
8 views

Help me find a way of sorting pairs of candidates for ranked pairs voting when not all voters rank all candidates

0 votes
0 answers
16 views

How to denote the set of all probability distributions and its degenerate probability distributions?

2 votes
0 answers
20 views

"Universal family" used despite moduli space not being fine?

1 vote
1 answer
46 views

Is flattening a natural isomorphism?

2 votes
0 answers
12 views

Computing local cohomology over a noncommutative ring

4 votes
0 answers
19 views

Let $\mu, \nu$ both have finite second moments and $\nu \in \Pi(\mu, \nu)$. Then the inner product $\langle \cdot, \cdot\rangle$ is $\pi$-integrable

-2 votes
0 answers
21 views

$\pi$ Spamingss

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