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manuscripta mathematica

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manuscripta mathematica

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  1. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Quiver GIT for varieties with tilting bundles

    In the setting of a variety X admitting a tilting bundle T we consider the problem of constructing X as a quiver GIT quotient of the algebra $...

    Joseph Karmazyn in manuscripta mathematica (2017)

  2. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    On critical values of L-functions of potentially automorphic motives

    In this paper we prove a version of Deligne’s conjecture for potentially automorphic motives, twisted by certain algebraic Hecke characters. The Hecke characters are chosen in such a way that we can use automo...

    Daniel Barrera Salazar, Lucio Guerberoff in manuscripta mathematica (2016)

  3. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Semi-factorial nodal curves and Néron models of jacobians

    Following Pépin, we call a family of curves over a discrete valuation ring semi-factorial if every line bundle on the generic fibre extends to a line bundle on the total space. In the case of nodal curves with...

    Giulio Orecchia in manuscripta mathematica (2016)

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    Article

    Quasi-compactness of Néron models, and an application to torsion points

    We prove that Néron models of Jacobians of generically-smooth nodal curves over bases of arbitrary dimension are quasi-compact (hence of finite type) whenever they exist. We give a simple application to the or...

    David Holmes in manuscripta mathematica (2016)

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    Article

    Existence of weak solutions of parabolic systems with p, q-growth

    We consider evolutionary problems associated with a convex integrand \({f : \Omega_T \times {\mathbb R}^{Nn} \to [0, \infty)}\) ...

    Thomas Singer in manuscripta mathematica (2016)

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    Article

    On smooth hypersurfaces containing a given subvariety

    We show when a nonsingular closed subvariety Y of a nonsingular affine real variety X is contained in a nonsingular hypersurface. We also solve this problem in a holomorphic case.

    Zbigniew Jelonek, Wojciech Kucharz in Manuscripta Mathematica (2016)

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    Article

    Numerical analogues of the Kodaira dimension and the Abundance Conjecture

    We add further notions to Lehmann’s list of numerical analogues to the Kodaira dimension of pseudo-effective divisors on smooth complex projective varieties, and show new relations between them. Then we use th...

    Thomas Eckl in Manuscripta Mathematica (2016)

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    Article

    Primitive permutation groups and derangements of prime power order

    Let G be a transitive permutation group on a finite set of size at least 2. By a well known theorem of Fein, Kantor and Schacher, G contains a derangement of prime power order. In this paper, we study the finite ...

    Timothy C. Burness, Hung P. Tong-Viet in Manuscripta Mathematica (2016)

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    Article

    Faithful tropicalisation and torus actions

    For any affine variety equipped with coordinates, there is a surjective, continuous map from its Berkovich space to its tropicalisation. Exploiting torus actions, we develop techniques for finding an explicit,...

    Jan Draisma, Elisa Postinghel in Manuscripta Mathematica (2016)

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    Article

    Almost everywhere Hölder continuity of gradients to non-diagonal parabolic systems

    We present a local almost everywhere C 1,α -regularity result for a general class of p-nonlinear non-diagonal parabolic systems. The main part of the considered systems depends on ...

    Jan Burczak in Manuscripta Mathematica (2014)

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    Article

    Minimal Hölder regularity implying finiteness of integral Menger curvature

    We study two kinds of integral Menger-type curvatures. We find a threshold value of α 0, a Hölder exponent, such that for all αα 0 embedded C 1,α ...

    Sławomir Kolasiński, Marta Szumańska in Manuscripta Mathematica (2013)

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    Article

    On the Seshadri constants of adjoint line bundles

    In the present paper we study the possible values of Seshadri constants. While in general every positive rational number appears as the local Seshadri constant of some ample line bundle, we point out that for ...

    Thomas Bauer, Tomasz Szemberg in Manuscripta Mathematica (2011)

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    Article

    Strongly tilting truncated path algebras

    For any truncated path algebra Λ, we give a structural description of the modules in the categories $${\mathcal{P}^{<\infty}(\Lambda\t...

    A. Dugas, B. Huisgen-Zimmermann in Manuscripta Mathematica (2011)

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    Article

    On the negativity of higher order derivatives of Dirichlet’s energy in plateau’s problem

    We calculate higher order derivatives of Dirichlet’s Energy at a branched minimal surface in the direction of Forced Jacobi Fields discovered by the author and R. Böhme. We show that, under certain conditions ...

    Anthony J. Tromba in manuscripta mathematica (2009)

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    Article

    Symplectic Dirac operators on Hermitian symmetric spaces

    We describe the shape of the symplectic Dirac operators on Hermitian symmetric spaces. For this, we consider these operators as families of operators that can be handled more easily than the original ones.

    Steffen Brasch, Katharina Habermann, Lutz Habermann in manuscripta mathematica (2009)

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    Article

    Singularities of generic characteristic polynomials and smooth finite splittings of Azumaya algebras over surfaces

    Let k be an algebraically closed field. Let P(X 11, . . . , X nn , T) be the characteristic polynomial of the generic matrix (X ...

    Manuel Ojanguren, Raman Parimala in manuscripta mathematica (2009)

  17. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Characterization of modules of finite projective dimension via Frobenius functors

    Let M be a finitely generated module over a local ring R of characteristic p > 0. If depth(R) = s, then the property that M has finite projective dimension can be characterized by the vanishing of the functor ...

    Saeed Nasseh, Massoud Tousi, Siamak Yassemi in manuscripta mathematica (2009)

  18. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Invariants of simple algebras

    We determine the group of invariants with values in Galois cohomology with coefficients \({\mathbb{Z}/2\mathbb{Z}}\) ...

    Sanghoon Baek, Alexander S. Merkurjev in manuscripta mathematica (2009)

  19. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Elliptic curve configurations on Fano surfaces

    The elliptic curves on a surface of general type constitute an obstruction for the cotangent sheaf to be ample. In this paper, we give the classification of the configurations of the elliptic curves on the Fan...

    Xavier Roulleau in manuscripta mathematica (2009)

  20. Open Access This content is freely available online to anyone, anywhere at any time.

    Article

    Tropical descendant Gromov–Witten invariants

    We define tropical Psi-classes on \({\mathcal{M}_{0,n}(\mathbb{R}^2, d)}\) and consider intersection products of Psi-c...

    Hannah Markwig, Johannes Rau in manuscripta mathematica (2009)

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