Zobrazeno 1 - 10
of 2 283
pro vyhledávání: '"Joswig, A."'
We study algebraic shifting of uniform hypergraphs and finite simplicial complexes in the exterior algebra with respect to matrices which are not necessarily generic. Several questions raised by Kalai (2002) are addressed. For instance, it turns out
Externí odkaz:
http://arxiv.org/abs/2410.24044
Autor:
Joswig-Jones, Trager, Zhang, Baosen
Grid-interfacing inverters allow renewable resources to be connected to the electric grid and offer fast and programmable control responses. However, inverters are subject to significant physical constraints. One such constraint is a current magnitud
Externí odkaz:
http://arxiv.org/abs/2409.13890
Autor:
Boyle, Peter, Erben, Felix, Gülpers, Vera, Hansen, Maxwell T., Joswig, Fabian, Lachini, Nelson Pitanga, Marshall, Michael, Portelli, Antonin
We present our study of the $\rho(770)$ and $K^*(892)$ resonances from lattice quantum chromodynamics (QCD) employing domain-wall fermions at physical quark masses. We determine the finite-volume energy spectrum in various momentum frames and obtain
Externí odkaz:
http://arxiv.org/abs/2406.19193
Autor:
Boyle, Peter, Erben, Felix, Gülpers, Vera, Hansen, Maxwell T., Joswig, Fabian, Lachini, Nelson Pitanga, Marshall, Michael, Portelli, Antonin
We present the first ab initio calculation at physical quark masses of scattering amplitudes describing the lightest pseudoscalar mesons interacting via the strong force in the vector channel. Using lattice quantum chromodynamics, we postdict the def
Externí odkaz:
http://arxiv.org/abs/2406.19194
Autor:
Joswig, Michael
The term "tropical convexity" was coined by Develin and Sturmfels who published a landmark paper with that title in 2004. However, the topic has much older roots and is deeply connected to linear and combinatorial optimization and other areas of math
Externí odkaz:
http://arxiv.org/abs/2405.17005
We present results for the leptonic decay constants of the D and D$_{\rm s}$ mesons from $N_{\rm f}=2+1$ lattice QCD. We employ a set of 49 high statistics gauge ensembles generated by the Coordinated Lattice Simulations (CLS) effort utilising non-pe
Externí odkaz:
http://arxiv.org/abs/2405.04506
We discuss what is special about the reproducibility of workflows in computer algebra. It is emphasized how the programming language Julia and the new computer algebra system OSCAR support such a reproducibility, and how users can benefit for their o
Externí odkaz:
http://arxiv.org/abs/2404.06241
The secondary fan $\Sigma(k,n)$ is a polyhedral fan which stratifies the regular subdivisions of the hypersimplices $\Delta(k,n)$. We find new infinite families of rays of $\Sigma(k,n)$, and we compute the fans $\Sigma(2,7)$ and $\Sigma(3,6)$. In the
Externí odkaz:
http://arxiv.org/abs/2402.17665
We report on a first study towards the use of stabilised Wilson fermions in heavy flavour physics. In particular, we are interested in fixing the charm quark mass via various physical observables and to inspect cut-off effects arising from different
Externí odkaz:
http://arxiv.org/abs/2401.05885
Motivated by the vast literature of quantum automorphism groups of graphs, we define and study quantum automorphism groups of matroids. A key feature of quantum groups is that there are many quantizations of a classical group, and this phenomenon man
Externí odkaz:
http://arxiv.org/abs/2312.13464