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Bergvall, Olof
Published in
Journal of Fixed Point Theory and Applications

We compute the total cohomology of the complement of the toric arrangement associated with the root system An\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$A_n$$\end{d...

Baum, Andrea Zhu, Yida
Published in
Journal of Geometry

In an unpublished manuscript of 1992, Johan Karlander has given an axiomatization of affine oriented matroids, which can be thought of as oriented matroids with a hyperplane at infinity. A closer examination of the text revealed an invalid construction and an incorrect argument in the proof of his main theorem. This paper provides an alternative ar...

Knight, Robert D.
Published in
Journal of Geometry

Several relationships between bundle forms of Laguerre planes are found, including the results (1) BB0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${B\mathfrak{B} 0}$...