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example: i like work in a field of functional analysis called "semigroup theory". no connection whatsoever (well, almost) with algebra. most times i would not be able to understand - just by the title - if an article discusses "my" semigroups or algebraic ones; a few times i would be clueless even after reading the abstract. keywords and/or msc classification always do the job, though.
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one possible answer:

example: i like in a field of functional analysis called "semigroup theory". no connection whatsoever (well, almost) with algebra. most times i would not be able to understand - just by the title - if an article discusses "my" semigroups or algebraic ones; a few times i would be clueless even after reading the abstract. keywords and/or msc classification always do the job, though.