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Displaying 41 – 60 of 66

Positive sheaves of differentials coming from coarse moduli spaces

Kelly Jabbusch, Stefan Kebekus (2011)

Annales de l’institut Fourier

Consider a smooth projective family of canonically polarized complex manifolds over a smooth quasi-projective complex base $Y^{\circ}$ , and suppose the family is non-isotrivial. If $Y$ is a smooth compactification of $Y^{\circ}$ , such that $D : = Y ∖ Y^{\circ}$ is a simple normal crossing divisor, then we can consider the sheaf of differentials with logarithmic poles along $D$ . Viehweg and Zuo have shown that for some $m > 0$ , the $m^{th}$ symmetric power of this sheaf admits many sections. More precisely, the $m^{th}$ symmetric power contains an invertible...

Propriétés de ramification à l'infini du groupe modulaire de Teichmüller. With an appendix in English by Ken Baclawski

Jean-Luc Brylinski (1979)

Annales scientifiques de l'École Normale Supérieure

Quasi-projective quotients by compact equivalence relations.

Eckart Viehweg (1991)

Mathematische Annalen

Ramification dans le corps des modules

Stéphane Flon (2004)

Annales de l’institut Fourier

Soit $f$ un revêtement de la droite projective défini sur $\bar{ℚ}$ , de groupe de monodromie $G$ . Soit $K$ le compositum des corps de rationalité des points de branchement $f$ , et $M$ le corps des modules correspondants. Partant du lien entre corps des modules et espaces de Hurwitz, on étudie la géométrie et l’arithmétique de ces espaces et des espaces de configuration de points complétés pour évaluer la ramification dans $M / K$ des mauvaises places de $f$ qui ne divisent pas l’ordre de $G$ , mais où les points de branchements...

Relations among Donaldson polynomials of certain algebraic surfaces, II.

Kieran G. O'Grady (1996)

Forum mathematicum

Relations between moduli spaces of stable bundles over ...2 and rationality.

Wei-Ping Li (1997)

Journal für die reine und angewandte Mathematik

Some moduli spaces of smooth complete intersections which are quasi-projective

Olivier Benoist (2014)

Journal of the European Mathematical Society

For some values of the degrees of the equations, we show, using geometric invariant theory, that the coarse moduli space of smooth complete intersections in $ℙ^{N}$ is quasi-projective.

Stable Higgs $G$ -sheaves.

T. Gómez, I. Sols (2008)

Revista Matemática Iberoamericana

Stable Rank-2 Vector Bundles on IP3with c1 = 0 and c2 = 3.

Geir Ellingsrud, Stein Arild Stramme (1981)

Mathematische Annalen

Stable Reflexive Sheaves.

Robin Hartshorne (1980)

Mathematische Annalen

Stable Vector Bundles of Rank 2 on IP3.

Robin Hartshorne (1978)

Mathematische Annalen

Stratifikation von Quotientenmannigfaltigkeiten (in Charakteristik 0) und insbesondere der Modulmannigfaltigkeiten für Kurven.

Herbert Popp (1971)

Journal für die reine und angewandte Mathematik

Subvarieties of the Hyperelliptic Moduli Determined by Group Actions

Shaska, T. (2006)

Serdica Mathematical Journal

2000 Mathematics Subject Classification: 14Q05, 14Q15, 14R20, 14D22.Let Hg be the moduli space of genus g hyperelliptic curves. In this note, we study the locus Hg (G,σ) in Hg of curves admitting a G-action of given ramification type σ and inclusions between such loci. For each genus we determine the list of all possible groups, the inclusions among the loci, and the corresponding equations of the generic curve in Hg (G, σ). The proof of the results is based solely on representations of finite subgroups...

Symmetric Polynomials Constructed From Moduli of Stable Sheaves with odd c1 on ruled surfaces.

Zhenbo Qin (1991)

Manuscripta mathematica

The moduli and the global period mapping of surfaces with $K^{2} = p_{g} = 1$ : a counterexample to the global Torelli problem

F. Catanese (1980)

Compositio Mathematica

The moduli space of totally marked degree two rational maps

Anupam Bhatnagar (2015)

Acta Arithmetica

A rational map ϕ: ℙ¹ → ℙ¹ along with an ordered list of fixed and critical points is called a totally marked rational map. The space $R a t ₂^{t} m$ of totally marked degree two rational maps can be parametrized by an affine open subset of (ℙ¹)⁵. We consider the natural action of SL₂ on $R a t ₂^{t} m$ induced from the action of SL₂ on (ℙ¹)⁵ and prove that the quotient space $R a t ₂^{t} m / S L ₂$ exists as a scheme. The quotient is isomorphic to a Del Pezzo surface with the isomorphism being defined over ℤ[1/2].

Currently displaying 41 – 60 of 66

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Displaying 41 – 60 of 66

Positive sheaves of differentials coming from coarse moduli spaces

Propriétés de ramification à l'infini du groupe modulaire de Teichmüller. With an appendix in English by Ken Baclawski

Quasi-projective quotients by compact equivalence relations.

Ramification dans le corps des modules

Relations among Donaldson polynomials of certain algebraic surfaces, II.

Relations between moduli spaces of stable bundles over ...2 and rationality.

Some moduli spaces of smooth complete intersections which are quasi-projective

Stable Higgs $G$ -sheaves.

Stable Rank-2 Vector Bundles on IP3with c1 = 0 and c2 = 3.

Stable Reflexive Sheaves.

Stable Vector Bundles of Rank 2 on IP3.

Stratifikation von Quotientenmannigfaltigkeiten (in Charakteristik 0) und insbesondere der Modulmannigfaltigkeiten für Kurven.

Subvarieties of the Hyperelliptic Moduli Determined by Group Actions

Symmetric Polynomials Constructed From Moduli of Stable Sheaves with odd c1 on ruled surfaces.

The moduli and the global period mapping of surfaces with $K^{2} = p_{g} = 1$ : a counterexample to the global Torelli problem

The moduli space of totally marked degree two rational maps

The Singular Points on the Moduli Spaces for Smooth Curves.

Torsion in elliptic curves over $k (t)$

Über die schlechte Reduktion einiger Shimuramannigfaltigkeiten

Über Singularitäten des Raumes der Schottky-Mumford-Kurven.

Currently displaying 41 – 60 of 66