2016
DOI: 10.1007/s40316-016-0066-6
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On a Hitchin–Thorpe inequality for manifolds with foliated boundaries

Abstract: We prove a Hitchin-Thorpe inequality for noncompact 4-manifolds with foliated geometry at infinity by extending on previous work by Dai and Wei. After introducing the objects at hand, we recall some preliminary results regarding the G-signature formula and the rho invariant, which are used to obtain expressions for the signature and Euler characteristic in our geometric context. We then derive our main result, and present examples.Résumé: En se basant sur des travaux de Dai et Wei, on démontre une inégalité de… Show more

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Cited by 2 publications
(1 citation statement)
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“…Note that Dai-Wei also state a formula in the general case, claiming the vanishing of the transgression term from (1.3). This claim holds true for even-dimensional B, but is incorrect when the base is odd-dimensional, as noted also in [30]. (They apply this result in dimension four when the fiber is a circle, hence their results concerning Hitchin-Thorpe inequalities on blow-ups of the Taub-NUT space are not affected by this issue.…”
Section: Introductionmentioning
confidence: 99%
“…Note that Dai-Wei also state a formula in the general case, claiming the vanishing of the transgression term from (1.3). This claim holds true for even-dimensional B, but is incorrect when the base is odd-dimensional, as noted also in [30]. (They apply this result in dimension four when the fiber is a circle, hence their results concerning Hitchin-Thorpe inequalities on blow-ups of the Taub-NUT space are not affected by this issue.…”
Section: Introductionmentioning
confidence: 99%