Exponential genus problems in one-relator products of groups
著者
書誌事項
Exponential genus problems in one-relator products of groups
（Memoirs of the American Mathematical Society, no. 873）
American Mathematical Society, 2007
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注記
"March 2007, volume 186, number 873 (third of five numbers)"
Bibliography: p. 155-156
内容説明・目次
内容説明
Exponential equations in free groups were studied initially by Lyndon and Schutzenberger and then by Comerford and Edmunds. Comerford and Edmunds showed that the problem of determining whether or not the class of quadratic exponential equations have solution is decidable, in finitely generated free groups. In this paper the author shows that for finite systems of quadratic exponential equations decidability passes, under certain hypotheses, from the factor groups to free products and one-relator products.
目次
Introduction Quadratic words Quadratic exponential equations and ${\mathcal L}$-genus Resolutions of quadratic equations Decision problems Pictures Corridors Angle assignment Curvature Configurations $C$ Configurations $D$ Final angle adjustment Isoperimetry Proof of Theorem 5.9 Bibliography.
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