Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Not every conjugate point of a semi-Riemannian geodesic is a bifurcation
  point   We revisit an example of a semi-Riemannian geodesic that was discussed by
Musso, Pejsachowicz and Portaluri in 2007 to show that not every conjugate
point is a bifurcation point. We point out a mistake in their argument, showing
that on this geodesic actually every conjugate point is a bifurcation point.
Finally, we provide an improved example which yields that the claim in our
title is nevertheless true.

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The categories of this paper are: q-alg
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The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: physics