Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A structure theorem for fibrations on Delsarte surfaces   In this paper we study a special class of fibrations on Delsarte surfaces. We
call these fibrations Delsarte fibrations. We show that after a specific cyclic
base change the fibration is the pull back of a fibration with three singular
fibers, and that this second base change is completely ramified at two points
where the fiber is singular. As a corollary we show that every Delsarte
fibration of genus 1 with nonconstant $j$-invariant occurs as the base change
of an elliptic surface from Fastenberg's list of rational elliptic surfaces
with $\gamma<1$.

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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: econ
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: cond-mat