Abstract
We prove the unicity of a complex of sheavesF whose microsupport is carried by a “dihedral” Lagrangian Λ ofT * X (X=a real manifold) and which is simple with a prescribed shift at a regular point of Λ. Our method consists in reducing Λ, by a real contact transformation, to the conormal bundle to aC 1-hypersuface, and then in using [K-S 1, Prop. 6.2.1] in the variant of [D'A-Z 1]. This is similar to [Z 2] but more general, since complex contact transformations and calculations of shifts are not required. We then consider the case of a complex manifoldX, and obtain some vanishing theorems for the complex of “microfunctions along Λ” similar to those of [A-G], [A-H], [K-S 1] (cf. also [D'A-Z 3 5], [Z 2]).
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References
[A-G] A. Andreotti and H. Grauert,Théorèmes de finitude pour la cohomologie des éspaces complexes, Bull. Soc. Math. France90 (1962), 193–259.
[A-H] A. Andreotti and C. D. Hill,E. E. Levi convexity and the Hans Lewy problem. Part II: Vanishing Theorems, Ann. Sci. Norm. Sup. Pisa26 (1972), 747–806.
[B-R-T] M. S. Baouendi, L. P. Rothschild and F. Treves,CR structures with group action and extendability of CR functions, Invent. Math.82 (1985), 359–396.
[D' A-Z 1] A. D'Agnolo and G. Zampieri,A propagation theorem for a class of microfunctions at the boundary, Rend. Acc. Naz. Lincei9, (1990), 54–58.
[D' A-Z 2] A. D'Agnolo and G. Zampieri,Generalized Levi's form for microdifferential systems, inD-Modules and Microlocal Geometry (M. Koshiwara, T. Monteiro Fernendez and P. Schapira, eds.), Walter de Gruyter and Co., Berlin, New York, 1992, pp. 25–35.
[D' A-Z 3] A. D'Agnolo and G. Zampieri,A vanishing theorem for sheaves of microfunctions at the boundary on CR manifolds, Comm. Partial Differ. Equ.17 (1992), 989–999.
[D' A-Z 4] A. D'Agnolo and G. Zampieri,Microlocal direct images of simple sheaves with applications to systems with simple characteristics, Bull. Soc. Math. France123 (1995), 101–133.
[D' A-Z 5] A. D'Agnolo and G. Zampieri,On microfunctions at the boundary along CR-manifolds, preprint 1991.
[H] L. Hörmander,An Introduction to Complex Analysis in Several Complex Variables, Van Nostrand, Princeton N.J. 1966.
[K-S 1] M. Kashiwara and P. Schapira,Microlocal study of sheaves, Astérisque128 (1985).
[K-S 2] M. Kashiwara and P. Schapira,Sheaves on Manifolds, Springer Grundlehren der Math.292 (1990).
[K-S 3] M. Kashiwara and P. Schapira,A vanishing theorem for a class of systems with simple characteristics, Invent. Math.82 (1985), 579–592.
[S] P. Schapira,condition de positivité dans une variété symplectique complexe. Applications à l'étude des microfunctions, Ann. Sci. Ec. Norm. Sup.14 (1981), 121–139.
[S-K-K] M. Sato, M. Kashiwara and T. Kawaî,Hyperfunctions and pseudodifferential equations, Springer Lecture Notes in Math.287 (1973), 265–529.
[S-T] P. Schapira and J. M. Trepreau,Microlocal pseudoconvexity and “edge of the wedge” theorem, Duke Math. J.61 (1990), 105–118.
[T] J. M. Trépreau,Systèmes differentiels à caractéristiques simples et structures réelles-complexes (d'après Baouendi-Trèves et Sato-Kashiwara-Kawaï), Sém. Bourbaki595 (1981–82).
[Z 1] G. Zampieri,The Andreotti-Grauert vanishing theorem for dihedrons of ℂ n preprint 1991.
[Z 2] G. Zampieri,Microlocalization of O X along non-smooth Lagrangians, preprint 1993.
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Zampieri, G. Simple sheaves along dihedral Lagrangians. J. Anal. Math. 66, 331–344 (1995). https://doi.org/10.1007/BF02788828
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DOI: https://doi.org/10.1007/BF02788828