Results 31 to 40 of about 30,322 (273)

Multiple positive solutions for a nonlinear 2n-th order m-point boundary value problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper, we consider the existence of multiple positive solutions for the 2n-th order $m$-point boundary value problems: $$\left\{\begin{array}{ll} x^{(2n)}(t)=f(t,x(t),x^{''}(t),\cdots ,x^{(2(n-1))}(t)), 0\leq t\leq 1,\\ x^{(2i+1)}(0)=\sum\limits_{
Youyu Wang, Yantao Tang, Meng Zhao
doaj   +1 more source

Bounds for the smallest $k$-chromatic graphs of given girth [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
Let $n_g(k)$ denote the smallest order of a $k$-chromatic graph of girth at least $g$. We consider the problem of determining $n_g(k)$ for small values of $k$ and $g$.
Geoffrey Exoo, Jan Goedgebeur
doaj   +1 more source

Homomorfisa Modul Deret Pangkat Tergeneralisasi Miring

open access: yesJurnal Matematika Integratif, 2022
Diberikan sebarang ring komutatif $R$ dengan elemen satuan, monoid terurut tegas $(S,\leq)$, homomorfisma monoid $\omega:S\rightarrow End(R)$, submonoid $S_1,S_2\subseteq S$ yang masing-masing dilengkapi urutan $\leq_1, \leq_2$ yang \textit{coarser ...
Ahmad Faisol, Fitriani Fitriani
doaj   +1 more source

Limit theorems for ratios of order statistics from uniform distributions

open access: yesJournal of Inequalities and Applications, 2019
Let {Xni,1≤i≤mn,n≥1} $\{X_{ni}, 1 \leq i \leq m_{n}, n\geq 1\}$ be an array of independent random variables with uniform distribution on [0,θn] $[0, \theta _{n}]$, and {Xn(k),k=1,2,…,mn} $\{X_{n(k)}, k=1, 2, \ldots , m_{n}\}$ be the kth order statistics ...
Shoufang Xu, Changlin Mei, Yu Miao
doaj   +1 more source

Approach to the construction of the spaces $ S{D^p}[\mathbb{R}^{\infty}]$ for $1 \leq p \leq \infty$

open access: yes, 2022
The objective of this paper is to construct an extension of the  class of Jones distribution Banach spaces $S{D^p}[\mathbb{R}^{n}], 1\leq p\leq \infty,$ which appeared in the book by Gill and Zachary \cite{TG} to  $S{D^p}[\mathbb{R}^{\infty}]$  for $1 ...
Kalita, Hemanta
core   +1 more source

Assessing urban green space distribution in a compact megacity by landscape metrics

open access: yesJournal of Environmental Engineering and Landscape Management, 2017
The pattern and structure of urban green space (UGS) plays a significant role in the landscape and ecological quality (LEQ) of UGS, especially in a compact city with limited space.
Huilin Liang, Di Chen, Qingping Zhang
doaj   +1 more source

Random permutations and their discrepancy process [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
Let $\sigma$ be a random permutation chosen uniformly over the symmetric group $\mathfrak{S}_n$. We study a new "process-valued" statistic of $\sigma$, which appears in the domain of computational biology to construct tests of similarity between ordered ...
Guillaume Chapuy
doaj   +1 more source

On the deformed Besov-Hankel spaces [PDF]

open access: yesOpuscula Mathematica, 2020
In this paper we introduce function spaces denoted by \(BH_{\kappa,\beta}^{p,r}\) (\(0\lt\beta\lt 1\), \(1\leq p, r \leq +\infty\)) as subspaces of \(L^p\) that we call deformed Besov-Hankel spaces.
Salem Ben Saïd   +2 more
doaj   +1 more source

Zero-sum partitions of Abelian groups of order $2^n$ [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2023
The following problem has been known since the 80's. Let $\Gamma$ be an Abelian group of order $m$ (denoted $|\Gamma|=m$), and let $t$ and $m_i$, $1 \leq i \leq t$, be positive integers such that $\sum_{i=1}^t m_i=m-1$.
Sylwia Cichacz, Karol Suchan
doaj   +1 more source

CALCULATING BEDLOAD TRANSPORT IN RIVERS: CONCEPTS, CALCULUS ROUTINES AND APPLICATION

open access: yesRevista Brasileira de Geomorfologia, 2017
Rivers are immensely important to human activities such as water supply, navigation, energy generation, and agriculture. They are also an important morphodynamic agent of erosion, transport and deposition.
Hudson de Azevedo Macedo   +6 more
doaj   +1 more source

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