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In this paper, we define an ordering relation for a set of complex numbers, and research the properties and theorems of the ordering, solve some simple complex inequalities with the ordering.

General Mathematics · Mathematics 2010-03-26 Sun Daochun , Gu Zhendong , Liu Weiqun , Yue Chao

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

Using factorization properties, we give several characterizations for an algebraic number ring to have class number 2.

Commutative Algebra · Mathematics 2019-03-13 Scott T. Chapman

We discuss alternative iteration methods for differential equations. We provide a convergence proof for exactly solvable examples and show more convenient formulas for nontrivial problems.

Mathematical Physics · Physics 2007-05-23 Paolo Amore , Hakan Ciftci , Francisco M. Fernandez

We give an abstract approach to the results of Adams and Nobel, [1]. It allows to exhibit a new property of VC classes. It should be stressed that the basic ideas of proofs can be found in [1].

Probability · Mathematics 2012-11-22 Stanislaw Kwapien

A new general formula for the number of conjugacy classes of subgroups of given index in a finitely generated group is obtained.

Combinatorics · Mathematics 2007-05-23 A. D. Mednykh

Modifying an idea of E. Brietzke we give simple proofs for the recurrence relations of some sequences of binomial sums which have previously been obtained by other more complicated methods.

Combinatorics · Mathematics 2007-05-23 Johann Cigler

We give a counterexample to a recently conjectured variant of the Penrose inequality.

Differential Geometry · Mathematics 2026-04-30 Sven Hirsch , Yipeng Wang

Based on the results people have obtained, we try to prove the Jacobian conjecture, but there is a gap in the proof.

Algebraic Geometry · Mathematics 2017-11-16 Gang Han

We survey the classical results of the Dirichlet Approximation Theorem.

Classical Analysis and ODEs · Mathematics 2007-05-23 Yong-Cheol Kim

We contemplate the notion of ambiguity in mathematical discourse. We consider a general method of resolving ambiguity and semantic options for sustaining a resolution. The general discussion is applied to the case of `fraction' which is…

Logic in Computer Science · Computer Science 2026-04-07 Jan A Bergstra , John V Tucker

We obtained a new formula for $\pi$.

Number Theory · Mathematics 2025-11-05 Nikita Kalinin , Mikhail Shkolnikov

We prove the irrationality of some factorial series. To do so we combine methods from elementary and analytic number theory with methods from the theory of uniform distribution.

Number Theory · Mathematics 2011-05-10 Jan-Christoph Schlage-Puchta

This article presents an equivalent formulation of the implicit complementarity problem. We demonstrate that solution of the equivalent formulation is equivalent to the solution of the implicit complementarity problem. Moreover, we provide…

Optimization and Control · Mathematics 2023-12-08 Bharat Kumar , Deepmala , A. K. Das

We provide an alternating proof of sharp inequalities related with Burnside's formula for $n!$

Classical Analysis and ODEs · Mathematics 2019-11-11 Necdet Batir

Withdrawn; results will appear elsewhere.

Number Theory · Mathematics 2008-05-29 Jeff Achter

We prove some new results related to Tanaka's formula.

Probability · Mathematics 2017-09-19 Gianluca Cassese

We prove a strong non-structure theorem for a class of metric structures with an unstable pair of formulae. As a consequence, we show that weak categoricity (that is, categoricity up to isomorphisms and not isometries) implies several…

Logic · Mathematics 2019-08-20 Saharon Shelah , Alexander Usvyatsov

Many proofs of the Fundamental Theorem of Algebra, including various proofs based on the theory of analytic functions of a complex variable, are known. To the best of our knowledge, this proof is different from the existing ones.

General Mathematics · Mathematics 2022-08-09 Bikash Chakraborty

We present a new topological proof of the infinitude of prime numbers with a new topology. Furthermore, in this topology, we characterize the infinitude of any non-empty subset of prime numbers.

Number Theory · Mathematics 2024-10-30 Jhixon Macías
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