Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytic approximation of transmutation operators for one-dimensional
  stationary Dirac operators and applications to solution of initial value and
  spectral problems   A method for approximate solution of initial value and spectral problems for
one dimensional Dirac equation based on an analytic approximation of the
transmutation operator is presented. In fact the problem of numerical
approximation of solutions is reduced to approximation of the potential matrix
by a finite linear combination of matrix valued functions related to
generalized formal powers introduced in arXiv:1904.03361. Convergence rate
estimates in terms of smoothness of the potential are proved. The method allows
one to compute both lower and higher eigendata with an extreme accuracy.

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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat