Graham Denham, Mehdi Garrousian, Mathias Schulze A geometric deletion-restriction formula http://arxiv.org/abs/1110.2799 Equality of P-partition generating functions Peter R. W. McNamara and Ryan E. Ward http://arxiv.org/abs/1210.2412 Euler-Mahonian Statistics via Polyhedral Geometry Matthias Beck, Benjamin Braun http://arxiv.org/abs/1109.3353 Notions of M\"o¶bius inversion Tom Leinster http://arxiv.org/abs/1201.0413 A combinatorial reciprocity theorem for hyperplane arrangements Christos A. Athanasiadis http://arxiv.org/pdf/math/0610482.pdf The multivariate arithmetic Tutte polynomial Petter Br\"and\'en, Luca Moci http://arxiv.org/abs/1207.3629 Betti numbers of cut ideals of trees Samu Potka and Camilo Sarmiento http://arxiv.org/abs/1209.6372 Decision trees, monotone functions, and semi-matroids Jacob A. White http://arxiv.org/abs/1209.6365 Matroids over a ring Alex Fink, Luca Moci http://arxiv.org/abs/1209.6571 The degree of point configurations: from Ehrhart theory to almost neighborly polytopes Authors: Benjamin Nill and Arnau Padrol http://arxiv.org/pdf/1209.5712v1.pdf Intersection Graph of a Module Erg\"un Yaraneri http://arxiv.org/pdf/1208.1897v2.pdf [TAKEN] Pattern Avoidance in Permutations on the Boolean Lattice Sam Hopkins, Morgan Weiler http://arxiv.org/abs/1208.5718 Colorings of simplicial complexes and vertex decomposability Jennifer Biermann, Christopher A. Francisco, Huy T\`ai H\`a, Adam Van Tuyl http://arxiv.org/abs/1209.3008 A non-abelian analogue of Whitney's 2-isomorphism theorem Eric Katz http://arxiv.org/abs/1208.1994 On the number of tilings of a square by rectangles Jim Conant and Tim Michaels http://arXiv.org/abs/1204.5734 The Orlik-Solomon Algebra and the Bergman Fan of a Matroid Ilia Zharkov http://arxiv.org/abs/1209.1651 A natural stochastic extension of the sandpile model on a graph Yao-ban Chan and Jean-Fran\c{c}ois Marckert and Thomas Selig http://arxiv.org/abs/1209.2038 On the M\"obius function of numerical semigroups posets Jonathan Chappelon (I3M), Jorge Luis Ram\'irez Alfons\'in http://arxiv.org/abs/1209.1880 Counting trees using symmetries Olivier Bernardi, Alejandro Morales http://arxiv.org/abs/1206.0598 On the spanning trees of the hypercube and other products of graphs Olivier Bernardi http://arxiv.org/abs/1207.0896 Galois groups of multivariate Tutte polynomials Adam Bohn, Peter J. Cameron, Peter Müller http://arxiv.org/abs/1006.3869v3 Samuel Kolins f-vectors of Simplicial Posets that are Balls http://arxiv.org/abs/1009.1917 Russ Woodroofe Matchings, coverings, and Castelnuovo-Mumford regularity http://arxiv.org/abs/1009.2756 Yidong Sun, Xiaojuan Wu and Jujuan Zhuang Congruences on the Bell polynomials and the derangement polynomials http://arxiv.org/abs/1009.2929 Aaron Abrams, David Gay, and Valerie Hower Discretized configurations and partial partitions http://arxiv.org/abs/1009.2935 Level Eulerian Posets Richard Ehrenborg, G\'abor Hetyei, and Margaret Readdy http://arxiv.org/abs/1009.3585 Hiroshi Koizumi, Yasuhide Numata, Akimichi Takemura On intersection lattices of hyperplane arrangements generated by generic points http://arxiv.org/abs/1009.3676 Richard Ehrenborg, Margaret Readdy The M\"obius function of partitions with restricted block size http://arxiv.org/abs/1009.3976 Joseph E. Bonin, Joseph P.S. Kung, Anna de Mier Characterizations of transversal and fundamental transversal matroids http://arxiv.org/abs/1009.3435 Louis J. Billera, Ning Jia, Victor Reiner http://arxiv.org/abs/math/0606646 A quasisymmetric function for matroids Mathias Drton, Caroline J. Klivans A Geometric Interpretation of the Characteristic Polynomial of Reflection Arrangements http://arxiv.org/abs/0906.2208 S. Chestnut and D. Fishkind Counting Spanning trees of Threshold Graphs http://arxiv.org/abs/1208.4125