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2017 Następne

Data publikacji: 24.11.2017

Licencja: CC BY-NC-ND  ikona licencji

Redakcja

Redaktor naczelny Sławomir Kołodziej

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Per Åhag, Rafał Czyż

Universitatis Iagellonicae Acta Mathematica, Tom 54, 2017, s. 7-13

https://doi.org/10.4467/20843828AM.17.001.7077

 

In this note we give sufficient conditions on a measure µ, defined on a unbounded strictly hyperconvex domain in Cn, to be the Monge-Ampère  measure of some plurisubharmonic function. These generalize recent results by Lê et al.

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Benharrat Belaïdi

Universitatis Iagellonicae Acta Mathematica, Tom 54, 2017, s. 15-32

https://doi.org/10.4467/20843828AM.17.002.7078

The main purpose of this paper is to study the growth of solutions of the linear differential-difference equation L(z, f)= n ∑ i=0 m ∑ j=0 Aij (z) f(j)(z + ci)=0, where Aij (z) (i = 0, ททท, n; j = 0, ททท, m) are entire or meromorphic functions of finite logarithmic order and ci (0, ททท, n) are distinct complex numbers. We extend some precedent results due to Wu and Zheng and others.

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Maciej Denkowski

Universitatis Iagellonicae Acta Mathematica, Tom 54, 2017, s. 33-41

https://doi.org/10.4467/20843828AM.17.003.7079

We prove a local Nullstellensatz with parameter for a continuous family of c-holomorphic functions with an effective exponent independent of the parameter: the local degree of the cycle of zeroes of the central section. We assume that this central section defines a proper intersection and we show that we can omit this assumption in case of isolated zeroes.

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Piotr Jędrzejewicz, Łukasz Matysiak, Janusz Zieliński

Universitatis Iagellonicae Acta Mathematica, Tom 54, 2017, s. 43-52

https://doi.org/10.4467/20843828AM.17.004.7080

We discuss various factorial properties of subrings as well as properties involving irreducible elements and square-free elements, in particular ones connected with Jacobian conditions.

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Yuguang Zhang

Universitatis Iagellonicae Acta Mathematica, Tom 54, 2017, s. 53-78

https://doi.org/10.4467/20843828AM.17.005.7081

In this paper, the relationship  between the existence of special Lagrangian submanifolds and the collapsing of Calabi–Yau manifolds is studied. First, special Lagrangian fibrations are constructed on some regions of bounded curvature and sufficiently collapsed in Ricci-flat Calabi–Yau manifolds. Then, conversely, it is shown that  the existence of special Lagrangian submanifolds with small volume implies the collapsing of some regions in the ambient Calabi–Yau manifolds.

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