Results 21 to 30 of about 29,141 (271)

Eigenvalue characterization for a class of boundary value problems

Electronic Journal of Qualitative Theory of Differential Equations, 1999
We consider the $n$'th order ordinary differential equation $(-1)^{n-k} y^{(n)}=\lambda a(t) f(y)$, $t\in[0,1]$, $n\geq 3$ together with the boundary condition $y^{(i)}(0)=0$, $0\leq i\leq k-1$ and $y^{(l)}=0$, $j\leq l\leq j+n-k-1$, for $1\leq j\leq k-1$
C. J. Chyan, Johnny Henderson
doaj   +1 more source

On general partial Gaussian sums

Journal of Inequalities and Applications, 2016
Let q ≥ 2 $q\geq2$ be a fixed integer, A = A ( q ) ≤ q $A=A(q)\leq q$ , B = B ( q ) ≤ q $B=B(q)\leq q$ , and H = H ( q ) ≤ q $H=H(q)\leq q$ . Define ħ ( A , B , H ) = { a ∈ Z ∣ ( a , q ) = 1 , a b ≡ 1 ( mod q ) , 1 ≤ a ≤ A , 1 ≤ b ≤ B , | a − b | ≤ H } .
Ganglian Ren, Dingding He, Tianping Zhang   +2 more
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Proving exact values for the $2$-limited broadcast domination number on grid graphs [PDF]

Discrete Mathematics & Theoretical Computer Science, 2023
We establish exact values for the $2$-limited broadcast domination number of various grid graphs, in particular $C_m\square C_n$ for $3 \leq m \leq 6$ and all $n\geq m$, $P_m \square C_3$ for all $m \geq 3$, and $P_m \square C_n$ for $4\leq m \leq 5$ and
Aaron Slobodin, Gary MacGillivray, Wendy Myrvold   +2 more
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On energy, Laplacian energy and $p$-fold graphs

Electronic Journal of Graph Theory and Applications, 2015
For a graph $G$ having adjacency spectrum ($A$-spectrum) $\lambda_n\leq\lambda_{n-1}\leq\cdots\leq\lambda_1$ and Laplacian spectrum ($L$-spectrum) $0=\mu_n\leq\mu_{n-1}\leq\cdots\leq\mu_1$, the energy is defined as $ E(G)=\sum_{i=1}^{n}|\lambda_i|$ and ...
Hilal A Ganie, Shariefuddin Pirzada, Edy Tri Baskoro   +2 more
doaj   +1 more source

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

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

Discrete 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
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Homomorfisa Modul Deret Pangkat Tergeneralisasi Miring

Jurnal 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
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Limit theorems for ratios of order statistics from uniform distributions

Journal 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

Fraction of Clumpy Star-Forming Galaxies at $0.5\leq z\leq 3$ in UVCANDELS: Dependence on Stellar Mass and Environment [PDF]

, 2023
High-resolution imaging of galaxies in rest-frame UV has revealed the existence of giant star-forming clumps prevalent in high redshift galaxies. Studying these sub-structures provides important information about their formation and evolution and informs
Lucas, R.A., Norman A. Grogin, Matthew J. Hayes, Chartab, Nima, Grogin, Norman A., Windhorst, Rogier A., Hayes, Matthew J.,, Wang, Xin, Gawiser, Eric, Swara Ravindranath, Mehta, Vihang, Teplitz, Harry I., Windhorst, R.A., Eric Gawiser, Xin Wang, Rogier A. Windhorst, Ravindranath, Swara, Ben Sunnquist, Mobasher, Bahram, Sattari, Z., Hayes, Matthew J., Gawiser, E., Daniel D. Kelson, Jonathan P. Gardner, Gawiser, Eric,, Claudia Scarlata, L. Y. Aaron Yung, Hathi, N.P., Anahita Alavi, Zhiyuan Ji, Kelson, Daniel D., Alec Martin, Hathi, Nimish P., Vihang Mehta, Zahra Sattari, Bahram Mobasher, Yung, L.Y.A., Sattari, Zahra, Robertson, Brant E., Guo, Y., Hayes, M.J., Prichard, L., Ji, Zhiyuan, Brant E. Robertson, Conselice, Christopher J., Harry I. Teplitz, Dai, Y.S., Yung, L. Y. Aaron, Chartab, N., Sunnquist, B., Ji, Z., Rafelski, M., Gardner, J.P., Y. Sophia Dai, Teplitz, H.I., Robertson, B.E., Prichard, Laura, Ray A. Lucas, Guo, Yicheng, Koekemoer, Anton M., Dai, Y. Sophia, Sunnquist, Ben, Wang, X., Nimish P. Hathi, Ravindranath, S., Gardner, Jonathan P., Nima Chartab, Christopher J. Conselice, Laura Prichard, Mobasher, B., Anton M. Koekemoer, Grogin, N.A., Conselice, C.J., Scarlata, C., Alavi, Anahita, Kelson, D.D., Koekemoer, A.M., Martin, A., Yicheng Guo, Lucas, Ray A., Martin, Alec, Rafelski, Marc, Mehta, V., Scarlata, Claudia, Alavi, A., Marc Rafelski   +85 more
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Assessing urban green space distribution in a compact megacity by landscape metrics

Journal 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