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Related papers: Schottky's theorem in $\mathbb{C}^n$

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For any given sum of squares domain in $\mathbb{C}^n,$ we reduce the complexity in Catlin's multitype techniques by giving a complete normalization of the geometry. Using this normalization result, we present a more elementary proof of the…

Complex Variables · Mathematics 2023-08-01 Nicholas Aidoo

Schmidt's theorem is significantly generalized, to partitions in which periodic but otherwise arbitrary subsets of parts are counted or uncounted. The identification of such sets of partitions with colored partitions satisfying certain…

Combinatorics · Mathematics 2022-07-15 George E. Andrews , William J. Keith

In this note we give two proofs of Brooks' Theorem. The first is obtained by modifying an earlier proof and the second by combining two earlier proofs. We believe these proofs are easier to teach in Computer Science courses.

Discrete Mathematics · Computer Science 2025-10-06 Gopalan Sajith , Sanjeev Saxena

We give a proof of the o-minimal version of the Whitney Extension Theorem simplified as compared to the original ones. A new simplifying ingredient is a definable variant of Urysohn's lemma for class $\mathcal{C}^q$ (see Section 3).

Logic · Mathematics 2026-03-17 Beata Kocel-Cynk , Wiesław Pawłucki , Anna Valette

In this short note, we point out a mistake in G.Cybenko's proof of his version of the universal approximation theorem which has been widely cited. This mistake might not be easily fixable along the idea of his proof and it also leads to an…

Classical Analysis and ODEs · Mathematics 2025-12-08 Kun Wang

In this paper, the two settings we are concerned with are $\Gamma < \operatorname{SO}(n, 1)$ a Zariski dense Schottky semigroup and $\Gamma < \operatorname{SL}_2(\mathbb C)$ a Zariski dense continued fractions semigroup. In both settings,…

Number Theory · Mathematics 2025-11-21 Pratyush Sarkar

We present type $\theta$ Stokes' theorem for type $\theta$ $k$-chains which extends the fundamental theorem of calculus in higher dimensions.

Differential Geometry · Mathematics 2018-12-17 Keqin Liu

Recently we have obtained two simple proofs of Sharkovsky's theorem, one with directed graphs [7] and the other without [8]. In this note, we present yet more simple proofs of Sharkovsky's theorem.

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

In this note we exhibit a very simple proof of McNaughton Theorem, almost right out of the definitions, and at the same time we observe that this theorem does not depend of Chang's completeness theorem.

Logic · Mathematics 2011-07-26 Eduardo J. Dubuc , Yuri Poveda

In this paper, we give a counter-example, in the general case, Kronecker theorem will derive contradiction. Kronecker theorem be correct after removing some conditions.

General Mathematics · Mathematics 2023-05-16 JinHua Fei

We obtain a fundamental inequality for a contraction with respect to a $C^*$-algebra valued metric space. As an application of this inequality a simple proof is given for the fixed point theorem in $C^*$-algebra valued metric space.

Functional Analysis · Mathematics 2017-08-15 Harsh Trivedi

We study the distribution of squares in a Piatetski-Shapiro sequence $\left(\lfloor n^c\rfloor\right)_{n\in\mathbb N}$ with $c>1$ and $c\not\in\mathbb N$. We also study more general equations $\lfloor{n^c}\rfloor = sm^2$, $n,m\in \mathbb…

Number Theory · Mathematics 2016-10-25 Kui Liu , Igor E. Shparlinski , Tianping Zhang

We review the PCT-theorem and problems connected with its demonstration. We add a new proof of the PCT-theorem in the theory of local observables which is similar to that one of Jost in Wightman quantum field theory. We also look at…

Mathematical Physics · Physics 2007-05-23 H. J. Borchers , J. Yngvason

By using the properties of the uniformly distributed sequences of real numbers on $(0,1)$, a short proof of a certain version of Kolmogorov strong law of large numbers is presented which essentially differs from Kolmogorov's original proof.

Probability · Mathematics 2016-01-13 Gogi R. Pantsulaia

In this paper we prove finiteness principles for $C^{m}\left( \mathbb{R}^{n}, \mathbb{R}^{D}\right) $-selection, and for $C^{m-1,1}\left( \mathbb{R}^{n}, \mathbb{R}^{D}\right) $-selection, in particular providing a proof for a conjecture of…

Functional Analysis · Mathematics 2016-03-09 Charles Fefferman , Arie Israel , Garving K. Luli

In this work we state a Theorem on number theory and apply it to solve some ordinary and partial differential equations.

General Mathematics · Mathematics 2021-02-25 B. M. Cerna Maguiña , D. D. Lujerio Garcia

The aim of this note is to show that the properties like motivic decomposability, Chow theoretic decomposition of the diagonal etc. happens for the special member of a family if it happens for a general member of the family.

Algebraic Geometry · Mathematics 2017-05-15 Kalyan Banerjee

Cook's theorem is commonly expressed such as any polynomial time-verifiable problem can be reduced to the SAT problem. The proof of Cook's theorem consists in constructing a propositional formula A(w) to simulate a computation of TM, and…

Computational Complexity · Computer Science 2019-05-01 Yu Li

We construct an infinite family of real cyclotomic fields with non-trivial class group. This result generalizes the result in [1] in the sense that our family includes theirs.

Number Theory · Mathematics 2022-05-17 Om Prakash

Cartwright-type and Bernstein-type theorems, previously known only for functions of exponential type in $\C^n$, are extended to the case of functions of arbitrary order in a cone.

Complex Variables · Mathematics 2009-09-25 Vladimir Logvinenko , Alexander Russakovskii