Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

Perhaps someone is kind enough to explain to me the meaning of this mathematical symbol, that I found in Discrete Mathematics (Matroid Theory)?

Let $G=(V(G),E(G))$ be a graph. What does

$$\Delta(G)$$

mean? From the context I can determine, that $\Delta(G)$ computes an integer $k\in\mathbb{N}$. But I don't know for what $k$ stands.

The exercise is: Let $k\in\mathbb{N}$ and $G$ be a graph. Define $$\mathcal{F}_{G}:=\{F\subset E(G): \Delta((V(G),F))\leq k\}$$ etc.

share|improve this question
1  
Could you give the source? I can think of at least two things (the maximum degree, or the Laplacian). –  Qiaochu Yuan Jul 5 '11 at 23:58
    
Someone might know this offhand (I don't), but perhaps you could give us some context? –  Fixee Jul 6 '11 at 0:01
    
I'll add the whole exercise in a sec. –  Aufwind Jul 6 '11 at 0:01
1  
Makes sense it's max-degree; lowercase delta is degree of a given vertex. –  Fixee Jul 6 '11 at 1:50

1 Answer 1

up vote 5 down vote accepted

Probably the maximum degree.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.