Skip to main content

Questions tagged [notation]

Questions on the meaning, history, and usage of mathematical symbols and notation. Please remember to mention where (book, paper, webpage, etc.) you encountered any mathematical notation you are asking about.

-1 votes
0 answers
35 views

I have been working for 45 years on observing empirical human dynamics and collaborative systems. I am seeking to formalize a "Logic of Exploitation" ($LE$) intended for behavioral auto-...
Yan Clark's user avatar
4 votes
1 answer
140 views

I hate graph theoretical notations. They follow no discernible pattern and are confusing as hell. Pretty much every Greek letter have one (or several) graph invariant associated to it$^\star$. I want ...
Alma Arjuna's user avatar
  • 8,108
2 votes
2 answers
196 views

I want to generalise the outer product as a pedagogical bridge to multilinear algebra (without jumping straight into the abstract formalisms), and eventually demonstrating the limitations of the ...
Alloth's user avatar
  • 41
5 votes
0 answers
160 views

At school in 1975, we were introduced to measuring angles in radians. The symbol used then was a sort of small c written as a superscript, e.g. as in the expression below $$ \theta \; = \; \dfrac{\pi}{...
Trunk's user avatar
  • 654
1 vote
0 answers
88 views

Here is the original equation I am dealing with - I am having difficulty trying to understand it. Specifically, the subscripts (i.e. $t+1|I_t$ and $Y_1|I_0$ ) on both sides confuse me: $$f_{Y_{t+1}|...
shellshocker's user avatar
7 votes
2 answers
741 views

This page is from Measure and category by John C. Oxtoby page 20. What is the meaning of this symbol? I added a red line under it. There is no definition of this symbol in this book, so I couldn't ...
A12345's user avatar
  • 970
7 votes
1 answer
205 views

When studying linear algebra, I have noticed that different authors use different mathematical objects when defining linear dependence and independence, and I am trying to understand whether these ...
Dimitrios ANAGNOSTOU's user avatar
4 votes
2 answers
564 views

I was playing around with a function in set theory, and I came out with this function : $S(\emptyset) = \lbrace\emptyset \rbrace $ $S(S(\emptyset)) = \lbrace \emptyset, \lbrace\emptyset \rbrace \...
Tensor's user avatar
  • 483
0 votes
0 answers
136 views

Just a quick question here, is it common to or does it make any sense to integrate using a partial derivative $\partial x$ rather than just $dx$? Like this: $$\int f(x,y)\partial x$$ I would guess ...
Eli's user avatar
  • 81
3 votes
0 answers
37 views

Recently, I've been working on a presentation of some of the basics of topos theory using internal language (current draft here). One thing I've run across there is that I frequently need to take a ...
Daniel Schepler's user avatar
1 vote
2 answers
48 views

This is a doubt that arose while studying the tensor product representation of lie algebra. The normalization condition for the generators in any given representation is written as : $$\langle T_{a}|...
Mars's user avatar
  • 111
2 votes
0 answers
148 views

I got a simple math problem but I find the notation confusing. How do you interpret the question? \begin{aligned} & \text{zij } \vec{r}:\mathbb{R}\to\mathbb{R}^3\text{ gegeven door} \\ & &...
Felix Stolze's user avatar
1 vote
2 answers
178 views

I am using Linear Algebra by Arnold Insel, Lawrence E. Spence, and Stephen H. Friedberg. Definition. Let $β = \{u_1, u_2,...,u_n\}$ be an ordered basis for a finite dimensional vector space $V.$ For $...
Mathematics enjoyer's user avatar
3 votes
0 answers
79 views

Suppose that $\mathcal{F}_n$ are sub-$\sigma$-fields of a $\sigma$-field $\mathcal{F}$, one of the assignment problems in a probability class asks us to show that if $\mathcal{F}_n\uparrow\mathcal{F}$ ...
Coco's user avatar
  • 1,028
4 votes
2 answers
216 views

I apologize in advance if the question is too soft! I have always been used (and now don't even recall how it started) to denote the unitary imaginary by $\mathrm{i}$ and the Napier constant by $\...
Giulio R's user avatar
  • 3,374

15 30 50 per page
1
2 3 4 5
880