I punti delle ipersuperficie cubiche irriducibili di come sottoinsieme intersezione completa
Page 1 Next
P. C. Craighero (1983)
Rendiconti del Seminario Matematico della Università di Padova
Jarnicki, Witold, O'Carroll, Liam, Winiarski, Tadeusz (2001)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
Jean Giraud (1982)
Annales de l'institut Fourier
Let be a desingularization of a normal surface . The group Pic is provided with an order relation , defined by . for any effective exceptional divisor . Comparing to the usual order relation we define the ceiling of which is an exceptional divisor. This notion allows us to improve the usual vanishing theorem and we deduce from it a numerical criterion for rationality and a genus formula for a curve on a normal surface; the difficulty lies in the case of a Weil divisor which is not a Cartier...
Dorin Popescu, Marko Roczen (1990)
Compositio Mathematica
Richard Randell (1975)
Mathematica Scandinavica
Bénédicte Basili (1996)
Bulletin de la Société Mathématique de France
Alexander Esterov (2005)
Revista Matemática Complutense
A formula of Matsuo Oka (1990) expresses the Milnor number of a germ of a complex analytic map with a generic principal part in terms of the Newton polyhedra of the components of the map. In this paper this formula is generalized to the case of the index of a 1-form on a local complete intersection singularity (Theorem 1.10, Corollaries 1.11, 4.1). In particular, the Newton polyhedron of a 1-form is defined (Definition 1.6). This also simplifies the Oka formula in some particular cases (Propositions...
Phillip A. Griffiths (1983)
Compositio Mathematica
Ingrid Bauer (1995)
Journal für die reine und angewandte Mathematik
Telemachos Hatziafratis (1990)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
Daniel Barlet, Jon Magnusson (1998)
Annales scientifiques de l'École Normale Supérieure
Magdalena Zielenkiewicz (2014)
Open Mathematics
Using the Berline-Vergne integration formula for equivariant cohomology for torus actions, we prove that integrals over Grassmannians (classical, Lagrangian or orthogonal ones) of characteristic classes of the tautological bundle can be expressed as iterated residues at infinity of some holomorphic functions of several variables. The results obtained for these cases can be expressed as special cases of one formula involving the Weyl group action on the characters of the natural representation of...
Roy Joshua, Michel Brion (2004)
Journal of the European Mathematical Society
We extend the methods developed in our earlier work to algorithmically compute the intersection cohomology Betti numbers of reductive varieties. These form a class of highly symmetric varieties that includes equivariant compactifications of reductive groups. Thereby, we extend a well-known algorithm for toric varieties.
Paul Roberts (1985)
Publications mathématiques et informatique de Rennes
J.-L. Colliot-Thélène, J.-J. Sansuc (1987)
Journal für die reine und angewandte Mathematik
J.-L. Colliot-Thélene, J.-J. Sansuc (1987)
Journal für die reine und angewandte Mathematik
Michel Brion (2010)
Les cours du CIRM
These notes present some fundamental results and examples in the theory of algebraic group actions, with special attention to the topics of geometric invariant theory and of spherical varieties. Their goal is to provide a self-contained introduction to more advanced lectures.
Kei-ichi Watanabe, Denis Rotillon (1982)
Manuscripta mathematica
Haruhisa Nakajima (1990)
Mathematische Zeitschrift
A. Fauntleroy (1988)
Compositio Mathematica
Page 1 Next