Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stripe solitons and lump solutions to a generalized (3 + 1)-dimensional
  B-type Kadomtsev-Petviashvili equation with variable coefficients in fluid
  dynamics   Under investigation is a generalized (3 + 1)-dimensional B-type
Kadomtsev-Petviashvili equation with variable coefficients in fluid dynamics.
Based on the Hirota's bilinear form and the positive quadratic function,
abundant lump solutions are obtained.The interaction solutions between lump
solutions and other solitons are also presented. Their dynamical behaviors are
graphically shown with different choices of the free parameters.

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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph