subconstituent

Etymology

Definitions

1. 1

   A part or component of a syntactic, morphological, or phonetic constituent.

   • The dominance relation directly characterizes the property of subconstituency: X dominates Y if Y is a subconstituent of X.
   • Given two adjacent constituents A and B, two cases must be considered: * A can attach as a left subconstituent of B; * B can attach as a right subconstituent of A, or as a right subconstituent of an active subconstituent of A.
2. 2

   One component of an algebra or graph that is made up of the union of several subalgebras…

   One component of an algebra or graph that is made up of the union of several subalgebras or subgraphs.

   • The second subconstituent of a graph with respect to some vertex x is the induced graph on the vertices distinct from x, and that are not adjacent to x.
3. 3

   A component of an elementary particle.

   • The term prequark has appeared in the literature as a name for subconstituents in composite models [4].
   • Apart from hadrons, which are made of subconstituent quarks, electron and positron are “fundamental” objects.
   • Subconstituent models of quarks, leptons and the weak gauge bosons [4] sometimes employ the idea of "Chiral Confinement [5] .

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