期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
We study the nontrivial elements in the Brauer group of a bielliptic surface and show that they can be realized as Azumaya algebras with a simple stru......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
In this paper, we firstly generalize the Brunn-Minkowski type inequality for Ekeland-Hofer-Zehnder symplectic capacity of bounded convex domains estab......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; ()
In this paper, we see that the hypersurfaces L-+/- in Ando (Abh Math Semin Univ Hambg 92:105-123, 2022, Proposition 1) are neutral but not flat. Nonet......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
We show that every compact complex analytic space endowed with a fine logarithmic structure and every morphism between such spaces admit a semi-univer......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; ()
In his 2008 thesis [16] , Tateno claimed a counterexample to the Bonato-Tardif conjecture regarding the number of equimorphy classes of trees. In this......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
We call a smooth irreducible projective curve a Castelnuovo curve if it admits a birational map into the projective r-space such that the image curve ......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; ()
We study base-point-freeness for big and nef line bundles on hyperkahler manifolds of generalized Kummer type: For n is an element of {2, 3, 4}, we sh......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
We find and discuss an unexpected (to us) order n cyclic group of automorphisms of the Lie algebra Iu(n):=u(n) (sic) u*(n), where un is the Lie algebr......
期刊： ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG, 2023; 93 (1)
In 2020 S. M. Gonek, S. W. Graham and Y. Lee formulated the Lindelof hypothesis for prime numbers and proved that it is equivalent to the Riemann Hypo......
