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In this paper, several generalizations of the classical Halpern-L\"{a}uchli Theorem are proven for Marczewski and Ellentuck structures using only combinatorial methods.

Logic · Mathematics 2023-03-31 Joanna Jureczko

We generalize certain arguments in Zariski's irregularity theorem on cyclic multiple planes.

Algebraic Geometry · Mathematics 2016-11-22 Ying Zong

In this thesis we develop generalized versions of the Chung-Feller theorem for lattice paths constrained in the half plane. The beautiful cycle method which was developed by Devoretzky and Motzkin as a means to prove the ballot problem is…

Combinatorics · Mathematics 2009-07-21 Aminul Huq

We prove a generalized Fej\'er's theorem for locally compact groups.

Classical Analysis and ODEs · Mathematics 2017-02-21 Huichi Huang

We present a short elementary proof of the following Twelve Points Theorem: Let M be a convex polygon with vertices at the lattice points, containing a single lattice point in its interior. Denote by m (resp. m*) the number of lattice…

Metric Geometry · Mathematics 2008-08-11 Matija Cencelj , Dušan Repovš , Mikhail Skopenkov

In this paper, we prove a version of Lagrange's theorem for gyrogroups and use this result to prove that gyrogroups of particular orders have the strong Cauchy property.

Group Theory · Mathematics 2014-12-16 Teerapong Suksumran , Keng Wiboonton

The distribution of lattice points with relatively $r$-prime is related to problems in the Number Theory such as the Extended Lindel\"{o}f Hypothesis and the Gauss Circle Problem. It is known that Sittinger's result is improved on the…

Number Theory · Mathematics 2017-04-10 Wataru Takeda

We give an explicit upper bound on the volume of lattice simplices with fixed positive number of interior lattice points. The bound differs from the conjectural sharp upper bound only by a linear factor in the dimension. This improves…

Combinatorics · Mathematics 2017-10-25 Gennadiy Averkov , Jan Krümpelmann , Benjamin Nill

The Euclidean algorithm makes possible a simple but powerful generalization of Taylor's theorem. Instead of expanding a function in a series around a single point, one spreads out the spectrum to include any number of points with given…

Numerical Analysis · Mathematics 2007-10-02 Garret Sobczyk

We give a remarkably elementary proof of the Brouwer fixed point theorem. The proof is verifiable for most of the mathematicians.

History and Overview · Mathematics 2011-09-22 Yukio Takeuchi , Tomonari Suzuki

We review principal results on axiomatizability of classes of lattices of equivalences

Logic · Mathematics 2025-07-29 Christian Herrmann

In this note, we present a simple directed graph proof of Sharkovsky's theorem.

Dynamical Systems · Mathematics 2007-05-23 Bau-Sen Du

Based on various strategies, we obtain several simple proofs of the celebrated Sharkovsky cycle coexistence theorem.

Dynamical Systems · Mathematics 2007-09-09 Bau-Sen Du

In this paper, we state and prove a generalization of \'Ciri\'c fixed point theorems in metric space by using a new generalized quasi-contractive map. These theorems extend other well known fundamental metrical fixed point theorems in the…

General Topology · Mathematics 2014-03-19 Nguyen Van Dung , Poom Kumam , Kanokwan Sitthithakerngkiet

We give a shorter and simpler proof of the result of [2], which gives a necessary and sufficient condition for when a lattice diagram is the projection of a lattice link.

Geometric Topology · Mathematics 2018-04-16 Ramin Naimi , Andrei Pavelescu , Elena Pavelescu

We discuss and give elementary proofs of results of Brion and of Lawrence-Varchenko on the lattice-point enumerator generating functions for polytopes and cones. This largely expository note contains a new proof of Brion's Formula using…

Combinatorics · Mathematics 2010-03-29 Matthias Beck , Christian Haase , Frank Sottile

A proof of Sharkovsky's Theorem is given. It is shown how this proof naturally generalizes to looking at maps on graphs and to Sharkovsky-type theorems for these maps. The paper is written at an elementary level and is meant as an…

Dynamical Systems · Mathematics 2012-01-18 Chris Bernhardt

This paper proposes a generalized ABC conjecture and assuming its validity settles a generalized version of Fermats last theorem.

General Mathematics · Mathematics 2015-07-09 Dhananjay P. Mehendale

For a given partially ordered set (poset) and a given family of mappings of the poset into itself, we study the problem of the description of joint fixed points of this family. Well-known Tarski's theorem gives the structure of the set of…

Logic · Mathematics 2016-02-05 Dmitrii Serkov

We prove a Ramsey theorem for finite sets equipped with a partial order and a fixed number of linear orders extending the partial order. This is a common generalization of two recent Ramsey theorems due to Soki\'c. As a bonus, our proof…

Combinatorics · Mathematics 2015-02-17 Slawomir Solecki , Min Zhao