All Research Papers Published In Archiv der Mathematik

Research Article
10.1007/s00013-026-02234-1

Artin–Schreier–Witt extensions and ramification breaks

Apr 24, 2026
Archiv der Mathematik
G Griffith Elder + 1 more +1

Research Article
10.1007/s00013-026-02229-y

On the nonexistence of a Green functor with values $$\hbox {spin}^c$$ bordism and spin bordism

Mar 29, 2026
Archiv der Mathematik
Hassan H Abdallah + 2 more +2

Abstract We show that there does not exist a $$C_2$$ C 2 -ring spectrum whose underlying ring spectrum is $$\textrm{MSpin}^c$$ MSpin c and whose $$C_2$$ C 2 -fixed point spectrum is $$\textrm{MSpin}$$ MSpin . As a corollary, the $$\hbox {spin}^c$$ spin c and spin orientations of Atiyah–Bott–Shapiro cannot be obtained as the underlying and fixed point maps of a single map of $$C_2$$ C 2 -ring spectra.

Research Article
10.1007/s00013-026-02236-z

Complete quasi-Yamabe gradient solitons with bounded scalar curvature

Mar 24, 2026
Archiv der Mathematik
Shun Maeta

Research Article
10.1007/s00013-026-02227-0

Sharp bounds for the growth and distortion of the analytic part of convex K-quasiconformal harmonic mappings

Mar 14, 2026
Archiv der Mathematik
Peijin Li + 1 more +1

Research Article
10.1007/s00013-026-02232-3

$$\pmb {\partial \bar{\partial }}$$-Lemma and Steinness for Riemann domains over Stein manifolds

Mar 09, 2026
Archiv der Mathematik
Shun Sugiyama

Research Article
10.1007/s00013-026-02224-3

Spectrally additive maps on the positive cones of the Wiener algebra

Feb 07, 2026
Archiv der Mathematik
Shiho Oi + 1 more +1

Research Article
10.1007/s00013-025-02206-x

On derived Lie algebras

Jan 24, 2026
Archiv der Mathematik
Salvatore Siciliano + 1 more +1

Abstract In this paper, we investigate the problem of which Lie algebras appear as the derived algebra of a Lie algebra. We present new results that further develop this study and address two questions raised in a paper concerned with the corresponding problem for groups.

Research Article
10.1007/s00013-025-02204-z

Integrability of Kepler billiards at zero-energy

Nov 25, 2025
Archiv der Mathematik
Lei Zhao

Research Article
10.1007/s00013-025-02190-2

A generating set for the Johnson kernel

Nov 11, 2025
Archiv der Mathematik
Marco Boggi

Research Article
10.1007/s00013-025-02184-0

Further generalizations of Girstmair’s irreducibility criterion

Oct 15, 2025
Archiv der Mathematik
Rishu Garg + 2 more +2