TY - JOUR

T1 - Applications of braid group techniques to the decomposition of moduli spaces, new examples

AU - Robb, A.

AU - Teicher, M.

PY - 1997

Y1 - 1997

N2 - Every smooth minimal complex algebraic surface of general type, X, may be mapped into a moduli space, Mc12(X),c2(X), of minimal surfaces of general type, all of which have the same Chern numbers. Using the braid group and braid monodromy, we construct infinitely many new examples of pairs of minimal surfaces of general type which have the same Chern numbers and nonisomorphic fundamental groups. Unlike previous examples, our results include X for which |π1(X)| is arbitrarily large. Moreover, the surfaces are of positive signature. This supports our goal of using the braid group and fundamental groups to decompose Mc12(X),c2(X) into connected components.

AB - Every smooth minimal complex algebraic surface of general type, X, may be mapped into a moduli space, Mc12(X),c2(X), of minimal surfaces of general type, all of which have the same Chern numbers. Using the braid group and braid monodromy, we construct infinitely many new examples of pairs of minimal surfaces of general type which have the same Chern numbers and nonisomorphic fundamental groups. Unlike previous examples, our results include X for which |π1(X)| is arbitrarily large. Moreover, the surfaces are of positive signature. This supports our goal of using the braid group and fundamental groups to decompose Mc12(X),c2(X) into connected components.

KW - Algebraic surfaces

KW - Fundamental groups

KW - Moduli spaces

UR - http://www.scopus.com/inward/record.url?scp=0012308961&partnerID=8YFLogxK

U2 - 10.1016/s0166-8641(96)00153-8

DO - 10.1016/s0166-8641(96)00153-8

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AN - SCOPUS:0012308961

SN - 0016-660X

VL - 78

SP - 143

EP - 151

JO - Topology and its Applications

JF - Topology and its Applications

IS - 1-2

ER -