$$p$$ -Adic Welch Bounds and $$p$$ -Adic Zauner Conjecture

IF 0.5 Q4 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS P-Adic Numbers Ultrametric Analysis and Applications Pub Date : 2024-07-30 DOI:10.1134/s207004662403004x
K. M. Krishna
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引用次数: 0

Abstract

Let \(p\) be a prime. For \(d\in \mathbb{N}\), let \(\mathbb{Q}_p^d\) be the standard \(d\)-dimensional p-adic Hilbert space. Let \(m \in \mathbb{N}\) and \(\text{Sym}^m(\mathbb{Q}_p^d)\) be the \(p\)-adic Hilbert space of symmetric m-tensors. We prove the following result. Let \(\{\tau_j\}_{j=1}^n\) be a collection in \(\mathbb{Q}_p^d\) satisfying (i) \(\langle \tau_j, \tau_j\rangle =1\) for all \(1\leq j \leq n\) and (ii) there exists \(b \in \mathbb{Q}_p\) satisfying \(\sum_{j=1}^{n}\langle x, \tau_j\rangle \tau_j =bx\) for all \( x \in \mathbb{Q}^d_p.\) Then

$$\begin{aligned} \, \max_{1\leq j,k \leq n, j \neq k}\{|n|, |\langle \tau_j, \tau_k\rangle|^{2m} \}\geq \frac{|n|^2}{\left|{d+m-1 \choose m}\right| }. \end{aligned}$$(0.1)

We call Inequality (0.1) as the \(p\)-adic version of Welch bounds obtained by Welch [IEEE Transactions on Information Theory, 1974]. Inequality (0.1) differs from the non-Archimedean Welch bound obtained recently by M. Krishna as one can not derive one from another. We formulate \(p\)-adic Zauner conjecture.

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$$p$$ -阿迪克-韦尔奇边界和 $$p$$ -阿迪克-扎乌纳猜想
Abstract Let \(p\) be a prime.对于 \(d\in \mathbb{N}\), 让 \(\mathbb{Q}_p^d\) 是标准的 \(d\)-dimensional p-adic Hilbert 空间。让 \(m \in \mathbb{N}\) 和 \(\text{Sym}^m(\mathbb{Q}_p^d)\) 是对称 m-tensors 的 \(p\)-adic Hilbert 空间。我们证明以下结果。让 \(\{tau_j\}_{j=1}^n\) 是 \(\mathbb{Q}_p^d\) 中的一个集合,满足 (i) \(\langle \tau_j、\(ii) there exists \(b \in \mathbb{Q}_p) satisfying \(\sum_{j=1}^{n}\langle x, \tau_j\rangle \tau_j =bxx\) for all \( x \in \mathbb{Q}^d_p.\Then $$\begin{aligned}\max_{1\leq j,k \leq n, j \neq k}\{|n|, |\langle \tau_j, \tau_k\rangle|^{2m}\}\geq \frac{|n|^2}{left|{d+m-1 \choose m}\right| }.\end{aligned}$$(0.1) 我们称不等式 (0.1) 为韦尔奇 [IEEE Transactions on Information Theory, 1974] 所得到的韦尔奇边界的 \(p\)-adic 版本。不等式(0.1)不同于克里希纳(M. Krishna)最近得到的非阿基米德韦尔奇边界,因为我们不能从一个边界推导出另一个边界。我们提出了 \(p\)-adic Zauner 猜想。
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来源期刊
P-Adic Numbers Ultrametric Analysis and Applications
P-Adic Numbers Ultrametric Analysis and Applications MATHEMATICS, INTERDISCIPLINARY APPLICATIONS-
CiteScore
1.10
自引率
20.00%
发文量
16
期刊介绍: This is a new international interdisciplinary journal which contains original articles, short communications, and reviews on progress in various areas of pure and applied mathematics related with p-adic, adelic and ultrametric methods, including: mathematical physics, quantum theory, string theory, cosmology, nanoscience, life sciences; mathematical analysis, number theory, algebraic geometry, non-Archimedean and non-commutative geometry, theory of finite fields and rings, representation theory, functional analysis and graph theory; classical and quantum information, computer science, cryptography, image analysis, cognitive models, neural networks and bioinformatics; complex systems, dynamical systems, stochastic processes, hierarchy structures, modeling, control theory, economics and sociology; mesoscopic and nano systems, disordered and chaotic systems, spin glasses, macromolecules, molecular dynamics, biopolymers, genomics and biology; and other related fields.
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