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Results tagged with terminology
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user 3545
Questions of the kind "What's the name for a X that satisfies property Y?"
27
votes
What is the "serious" name for the topograph (for a quadratic form)
There's no more serious name for the topograph, as far as I know. And Conway puts a lot of thought into his names, so I think it's best to keep it. I think it's meant to fit into a larger metaphoric …
- 13.3k
6
votes
1
answer
331
views
What are these recursively defined sequences called?
Let $F(x,y)$ be a function of two variables, defined for all positive integers $x$ and $y$. Define a sequence $a_n$ recursively by setting $a_1 = 1$ and
$$a_n = \sum_{k=1}^{n-1} F(k, n-k) \cdot a_k a …
- 13.3k