Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On permutation trinomials of type $x^{2p^s+r}+x^{p^{s}+r} +\lambda x^r$   We determine all permutation trinomials of type $x^{2p^s+r}+x^{p^s+r}+\lambda
x^r$ over the finite field $\mathbb{F}_{p^t}$ when $(2p^s+r)^4<p^t$. This
partially extends a previous result by Bhattacharya and Sarkar in the case
$p=2$, $r=1$.

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The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
9
The categories of this paper are: nlin