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math.AG2023★ 1 cited
A Serre spectral sequence for the moduli space of tropical curves
Christin Bibby, Melody Chan, Nir Gadish +1
We construct, for all and , a spectral sequence of rational -representations which computes the -equivariant reduced rational cohomology of the tropica…
math.CO2023★ 2 cited
Positive del Pezzo Geometry
Nick Early, Alheydis Geiger, Marta Panizzut +2
Real, complex, and tropical algebraic geometry join forces in a new branch of mathematical physics called positive geometry. We develop the positive geometry of del Pezzo surfaces…
math.GR2023
Some thoughts and experiments on Bergman's compact amalgamation problem
Michael Joswig, Mario Kummer, Andreas Thom +1
We study the question whether copies of in can be amalgamated in a compact group. This is the simplest instance of a fundamental open problem in the theory o…