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IamWill's user avatar
IamWill
  • Member for 7 years, 3 months
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9 votes
Accepted

Reference request for Gibbs measure

6 votes

What 'complete' means in Hilbert Space

6 votes
Accepted

Intuitive Explanation of the Inner Product

4 votes

Show that if $x\in\mathbb{R}$, then $f(x)=\int_{0}^{x}e^{-t^2}dt$ increases on $\mathbb{R}$

3 votes
Accepted

Use mathematical induction to prove n ≥ 3

3 votes

Prove $\lim_{(x,y)\to (0,0)}\frac{xy\sin(y)}{x^2+y^2}$ using delta-epsilon argument

3 votes
Accepted

Determine the real part of $\left(\cfrac{z-1}{z+1}\right)$

3 votes

If $A$ is an open set in $\mathbb{R^n}$ is $v + A = \{v + x: x\in A \}$ an open set $\forall v \in \mathbb{R^n}$?

3 votes

Proving $||x||-||y|| \leq ||x-y||$

3 votes

How can I prove that the set (a,b) is open

3 votes

find $y$ if $\sqrt[4]{y} + \sqrt[4]{16y} - 2 = 4$

3 votes
Accepted

Why P(B|A) is not the same as P(A∩B) if both A & B are independent events?

3 votes
Accepted

Isometric operators and boundedness on Hilbert spaces

3 votes

What is a kernel integral operator?

3 votes

Coupling bra-ket notation to the definition of Hilbert space

2 votes

Is there a website which is having the collection of all the lecture notes of Pure and Applied mathematics?

2 votes
Accepted

Exponential Integrals: What is the derivative of the exponential integral $E_n(x)$?

2 votes

How to practice problems from textbooks that don't have a solution manual

2 votes
Accepted

Taylor Expansion with Remainder and Norm

2 votes
Accepted

Integrate $\sin^4(x)$

2 votes

$f$ is bijective, but is not the identity function $f(x) = x$.

2 votes
Accepted

What is the partial derivative of the sum of the pairwise product of vector components

2 votes
Accepted

Cauchy-Schwarz inequality in $\mathbb{R}^{3}$

2 votes
Accepted

Compact support : $f$ non zero on $B_R(0)$ or on $\overline{B_R}(0)$?

2 votes
Accepted

Prove that $|x^3|$ is continuous.

2 votes

understanding an inequality on pg.136 Royden (4th edition).

2 votes
Accepted

Geometric meaning of curvature

2 votes

Let $a$ be a real number and $\mid x-a \mid < \frac{\mid a \mid}{2}$, then $\mid x \mid > \frac{\mid a \mid}{2}.$

2 votes
Accepted

Very basic question on vector line integrals.

2 votes

How to transform $z$ into $\hat z$

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