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We present a simple alternative viewpoint on Hodge-Newton indecomposability, illustrating its explanatory value through a uniform proof of a combinatorial identity arising from affine Deligne-Lusztig varieties with finite Coxeter part.

Number Theory · Mathematics 2026-03-10 Dong Gyu Lim

In this paper we derive some interesting identities arising from the orhtogonality of gegenbauer polynomials.

Number Theory · Mathematics 2012-08-01 Dae San Kim , Taekyun Kim , Seog-Hoon Rim

We classify strongly modular lattices with longest and second longest possible shadow.

Number Theory · Mathematics 2007-05-23 Gabriele Nebe

We investigate geometric and topological properties of $d$-majorization -- a generalization of classical majorization to positive weight vectors $d \in \mathbb{R}^n$. In particular, we derive a new, simplified characterization of…

Combinatorics · Mathematics 2023-03-30 Frederik vom Ende , Gunther Dirr

We produce an explicit family of totally real cyclic quartic polynomials that are monogenic in many cases and, if the $abc$ conjecture holds, generate distinct monogenic quartic fields infinitely often. Additional families (also…

Number Theory · Mathematics 2025-07-10 Paul M. Voutier

Let G be a complex connected reductive group. I. Losev has shown that a smooth affine spherical G-variety X is uniquely determined by its weight monoid, which is the set of irreducible representations of G that occur in the coordinate ring…

Algebraic Geometry · Mathematics 2017-11-15 Kay Paulus , Guido Pezzini , Bart Van Steirteghem

It is possible to write the indicator function of any matroid polytope as an integer combination of indicator functions of Schubert matroid polytopes. In this way, every matroid on $n$ elements of rank $r$ can be thought of as a lattice…

Combinatorics · Mathematics 2025-08-14 Luis Ferroni , Alex Fink

In a d-simplex every facet is a (d-1)-simplex. We consider as generalized simplices other combinatorial classes of polytopes, all of whose facets are in the class. Cubes and multiplexes are two such classes of generalized simplices. In this…

Combinatorics · Mathematics 2007-05-23 Margaret M. Bayer , Tibor Bisztriczky

A cubical polytope is a polytope with all its facets being combinatorially equivalent to cubes. The paper is concerned with the linkedness of the graphs of cubical polytopes. A graph with at least $2k$ vertices is \textit{$k$-linked} if,…

Combinatorics · Mathematics 2023-10-13 Hoa T. Bui , Guillermo Pineda-Villavicencio , Julien Ugon

In this paper, we study transcendence theory for Thakur multizeta values in positive characteristic. We prove an analogue of the strong form of Goncharov's conjecture. We also establish the same result for Carlitz multiple polylogarithms at…

Number Theory · Mathematics 2019-02-20 Chieh-Yu Chang

We show that very general hypersurfaces in odd-dimensional simplicial projective toric varieties verifying a certain combinatorial property satisfy the Hodge conjecture (these include projective spaces). This gives a connection between the…

Algebraic Geometry · Mathematics 2021-10-12 Ugo Bruzzo , Antonella Grassi

We prove the conjecture that any Grothendieck $(\infty,1)$-topos can be presented by a Quillen model category that interprets homotopy type theory with strict univalent universes. Thus, homotopy type theory can be used as a formal language…

Algebraic Topology · Mathematics 2019-04-30 Michael Shulman

We consider embeddings of a finite complex in a sphere. We give a homotopy theoretic classification of such embeddings in a wide range.

Algebraic Topology · Mathematics 2007-05-23 John R. Klein

We compute the canonical form of the cosmological polytope for any graph in terms of the dual of the shifted cosmological polytope in two different ways. On the way, we provide an explicit coordinate description of the dual of the…

Combinatorics · Mathematics 2026-03-05 Anna Birkemeyer , Torben Donzelmann , Mieke Fink , Martina Juhnke

Cyclic polytopes are generally known for being involved in the Upper Bound Theorem, but they have another extremal property which is less well known. Namely, the special shape of their f-vectors makes them applicable to certain…

Combinatorics · Mathematics 2011-07-26 László Major

We study semigroup algebras associated to lattice polytopes. We begin by generalizing and refining work of Hochster, and describe the volume maps of these algebras, that is, their fundamental classes, in terms of Parseval-Rayleigh…

Combinatorics · Mathematics 2025-09-18 Karim Alexander Adiprasito , Stavros Argyrios Papadakis , Vasiliki Petrotou

We introduce the class of strongly sofic monoids. This class of monoids strictly contains the class of sofic groups and is a proper subclass of the class of sofic monoids. We define and investigate sofic topological entropy for actions of…

Group Theory · Mathematics 2025-02-10 Tullio Ceccherini-Silberstein , Michel Coornaert , Xuan Kien Phung

Bisztriczky introduced the multiplex as a generalization of the simplex. A polytope is multiplicial if all its faces are multiplexes. In this paper it is proved that the flag vectors of multiplicial polytopes depend only on their face…

Combinatorics · Mathematics 2007-05-23 Margaret M. Bayer

Let $F$ be a planar, $3$-connected graph of radius one on $p$ vertices, with $a$ vertices of degree three. We characterise all unigraphic degree sequences for such graphs, when $a\geq 3$ and $p$ is large enough with respect to $a$. This…

Combinatorics · Mathematics 2022-07-07 Riccardo W. Maffucci

We establish a conjecture of Mumford characterizing rationally connected complex projective manifolds in several cases.

Algebraic Geometry · Mathematics 2017-05-05 Vladimir Lazić , Thomas Peternell