Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Incidence Matrix Description of Intersecting p-brane Solutions   An algebraic method for a general construction of intersecting p-brane
solutions in diverse spacetime dimensions is discussed. An incidence matrix
describing configurations of electric and magnetic fields is introduced.
Intersecting p-branes are specified by solutions of a system of characteristic
algebraic equations for the incidence matrix. This set of characteristic
equations generalizes a single characteristic equation found before for a
special "flower" ansatz. The characteristic equations admit solutions only for
quantized values of scalar coupling parameters. A wide list of examples
including solutions with regular horizons and non-zero entropy in D=11 and D=10
theories is presented.

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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: q-fin
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc