elementary number theory : Math Help

Closure of Algebraic Closure

linear-algebra field-theory
Updated October 20, 2019 05:20 AM

Does this hierarchy of intersection and union collapse?

elementary-set-theory propositional-calculus
Updated October 20, 2019 05:20 AM

Proving that "every acyclic, connected graph with V vertices has V-1 edges"

proof-verification graph-theory
Updated October 20, 2019 05:20 AM

Define $f : \mathbb{Z}_p \to \mathbb{Z}_p$ by $f([x])=[ax],a\in\mathbb{Z},p\nmid a$. Prove that $f$ is 1-to-1 & onto

number-theory modular-arithmetic
Updated October 20, 2019 04:20 AM

Minimum digit sum of a number

elementary-number-theory
Updated October 20, 2019 04:20 AM

Primitive instances where $c^3|(a^3+b^3)$ with $a,b,c\in\mathbb{N}$

number-theory elementary-number-theory diophantine-equations integers cubic-equations
Updated October 20, 2019 04:20 AM

Why $B=\sum_{n\geq 0}\frac{\theta^n}{n!}J^n$ where $J:=\left( \matrix{0&-1\\ 1&0}\right)$?

linear-algebra abstract-algebra matrices group-theory lie-groups
Updated October 20, 2019 03:20 AM

Average of sequence random variables convergence

probability probability-theory convergence weak-convergence law-of-large-numbers
Updated October 20, 2019 03:20 AM

Strong Markov Property: Having Trouble Understanding Proof Using Strong Markov

real-analysis probability probability-theory stochastic-processes markov-chains
Updated October 20, 2019 03:20 AM

folland, computation in proof of theorem 1.18 (inner regularity of borel measure on R)

real-analysis measure-theory
Updated October 20, 2019 03:20 AM

Convergence in Measure and Continuity

real-analysis probability-theory measure-theory convergence
Updated October 20, 2019 03:20 AM

Approximate an operator by a sequence of operators with finite spectrum

operator-theory operator-algebras c-star-algebras
Updated October 20, 2019 03:20 AM

Ring Homomorphism determined by a 6th root of unity

abstract-algebra ring-theory complex-numbers ring-homomorphism
Updated October 20, 2019 01:20 AM

How do I compute the expected value of this sequence of R.V.

probability probability-theory probability-distributions expected-value
Updated October 20, 2019 01:20 AM

Density of $\frac23U_{[-1,1]}+\frac13\delta_0$ w.r.t $U_{[-1,1]}$ and $\delta_0$

probability-theory measure-theory density-function radon-nikodym
Updated October 20, 2019 00:20 AM

How can I prove that a gaussian integer in the set $\mathbb{Z}[\sqrt{2}]$, is prime.

abstract-algebra number-theory
Updated October 20, 2019 00:20 AM

Let $(X_n)$ be a sequence of i.i.d. r.v.'s. Proving that if $A$ is a tail event, then it is also symmetric.

probability probability-theory
Updated October 20, 2019 00:20 AM

Finding squares that add to a certain sum

number-theory arithmetic radicals square-numbers sums-of-squares
Updated October 20, 2019 00:20 AM

Absolute Value of Integrals

real-analysis integration analysis measure-theory lebesgue-integral
Updated October 20, 2019 00:20 AM

What problems can one encode in Generalised Collatz Problem?

elementary-number-theory logic
Updated October 20, 2019 00:20 AM

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