Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Impulsive Implicit $\Psi$--Hilfer Fractional Differential
  Equations with Delay   In this paper, we investigate the existence and uniqueness of solutions and
derive the Ulam--Hyers--Mittag--Leffler stability results for impulsive
implicit $\Psi$--Hilfer fractional differential equations with time delay. It
is demonstrated that the Ulam--Hyers and generalized Ulam--Hyers stability are
the specific cases of Ulam--Hyers--Mittag--Leffler stability. Extended version
of Gronwall inequality, abstract Gronwall lemma and Picard operator theory are
the primary devices in our investigation. We give an example to illustrate the
obtained results.

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The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
9
The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc