Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lucas Type Theorem Modulo Prime Powers   In this note we prove that
  {equation*} {np^s\choose mp^s+r}\equiv (-1)^{r-1}r^{-1}(m+1){n\choose m+1}p^s
\pmod{p^{s+1}}
  {equation*} where $p$ is any prime, $n$, $m$, $s$ and $r$ are nonnegative
integers such that $n\ge m$, $s\ge 1$, $1\le r\le p^s-1$ and $r$ is not
divisible by $p$. We derive a proof by induction using a multiple application
of Lucas' theorem and two basic binomial coefficient identities. As an
application, we prove that a similar congruence for a prime $p\ge 5$
established in 1992 by D. F. Bailey holds for each prime $p$.

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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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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: supr-con
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The categories of this paper are: q-fin