In mathematics, a Lefschetz pencil is a construction in algebraic geometry considered by Solomon Lefschetz, used to analyse the algebraic topology of an algebraic variety V {\displaystyle V} . == Description == A pencil is a particular kind of linear system of divisors on V {\displaystyle V} , namely a one-parameter family, parametrised by the projective line.
In mathematics, a Lefschetz pencil is a construction in algebraic geometry considered by Solomon Lefschetz, used to analyse the algebraic topology of an algebraic variety V {\displaystyle V} . == Description == A pencil is a particular kind of linear system of divisors on V {\displaystyle V} , namely a one-parameter family, parametrised by the projective line.
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