Zobrazeno 1 - 10
of 914
pro vyhledávání: '"Loenne, P."'
Autor:
Lönne, Michael, Penegini, Matteo
We classify subgroups of $\textrm{SL}(2,\mathbb{Z})$ up to conjugacy, which occur as monodromy groups of elliptically fibered K3 surfaces following a general strategy proposed by Bogomolov and Tschinkel. The essential step is the factorisation of the
Externí odkaz:
http://arxiv.org/abs/2312.13916
We describe the birational and the biregular theory of cyclic and Abelian coverings between real varieties.
Comment: 25 pages, dedicated to Slava (Viatcheslav) Kharlamov on the occasion of his 71-st birthday, final version to appear on Mathemati
Comment: 25 pages, dedicated to Slava (Viatcheslav) Kharlamov on the occasion of his 71-st birthday, final version to appear on Mathemati
Externí odkaz:
http://arxiv.org/abs/2108.03754
Autor:
Hulek, Klaus, Lönne, Michael
In this paper we investigate two stratifications of the moduli space of elliptically fibred K3 surfaces. The first comes from Shimada's classification of connected components of elliptically fibred K3 surfaces and is closely related to the root latti
Externí odkaz:
http://arxiv.org/abs/2101.12689
Autor:
Baader, Sebastian, Lönne, Michael
We generalize presentations of the fundamental group of discriminant complements and arrive at a class of presentations associated naturally with words in the free monoid of the alphabet $\sigma_1,\dots,\sigma_{n-1}$. Our study addresses invariance p
Externí odkaz:
http://arxiv.org/abs/2001.09098
Autor:
Lönne, Michael
We consider components of Hurwitz moduli space of G-Galois covers and set up a powerful algebraic framework to study the set of corresponding equivalence classes of monodromy maps. Within that we study geometric stabilisation by various G-covers bran
Externí odkaz:
http://arxiv.org/abs/1904.12917
Autor:
Lönne, Michael, Penegini, Matteo
In this paper we give an asymptotic bound of the cardinality of Zariski multiples of particular plane singular curves. These curves have only nodes and cusps as singularities and are obtained as branched curves of ramified covering of the plane by su
Externí odkaz:
http://arxiv.org/abs/1809.09854
Autor:
Lönne, Michael
Quite some time ago, at the singularity conference at Carg\`ese 1972 Brieskorn asked the following question: Is the local fundamental group $\pi_1^{s}(S-D)$ of the discriminant complement inside the semi-universal unfolding $S$ of an isolated hypersu
Externí odkaz:
http://arxiv.org/abs/1801.04626
Kodaira fibrations are surfaces of general type with a non-isotrivial fibration, which are differentiable fibre bundles. They are known to have positive signature divisible by $4$. Examples are known only with signature 16 and more. We review approac
Externí odkaz:
http://arxiv.org/abs/1711.01792
Autor:
Loehr, Johannes, Heras, Daniel de las, Loenne, Michael, Bugase, Jonas, Jarosz, Adam, Urbaniak, Maciej, Stobiecki, Feliks, Tomita, Andreea, Huhnstock, Rico, Koch, Iris, Ehresmann, Arno, Holzinger, Dennis, Fischer, Thomas M.
Publikováno v:
Soft Matter, 2017
The topologically protected transport of colloidal particles on top of magnetic patterns of all possible single lattice constant two dimensional magnetic point group symmetries is studied experimentally, theoretically, and with numerical simulations.
Externí odkaz:
http://arxiv.org/abs/1707.00861
Publikováno v:
New J. Phys. 18, 105009, (2016)
We theoretically study the motion of magnetic colloidal particles above a magnetic pattern and compare the predictions with Brownian dynamics simulations. The pattern consists of alternating square domains of positive and negative magnetization. The
Externí odkaz:
http://arxiv.org/abs/1608.00808