Results 1 to 10 of about 160,354 (53)
Total double Roman domination in graphs [PDF]
Communications in Combinatorics and Optimization, 2020 Let $G$ be a simple graph with vertex set $V$. A double Roman dominating function (DRDF) on $G$ is a function $f:V\rightarrow\{0,1,2,3\}$ satisfying that if $f(v)=0$, then the vertex $v$ must be adjacent to at least two vertices assigned $2$ or one ...
Guoliang Hao +2 more
doaj +1 more source
Grouting Treatment of Water and Mud Inrush in Fully Weathered Granite Tunnel: A Case Study
Geofluids, Volume 2020, Issue 1, 2020., 2020 When mountain tunnel passes through completely weathered granite strata, water and mud inrush is easy to occur, causing casualties and economic losses. Grouting is a common and effective treatment method for water and mud inrush disaster. The current existing researches focus on theoretical analysis, numerical simulation, and laboratory test, and the ...
Jiandong Niu +8 more
wiley +1 more source
Analisis Simetri Lie Persamaan Painleve Ince
Jurnal Matematika Integratif, 2019 Penentuan koordinat kanonik merupakan hal yang diperlukan dalam penentuan solusi persamaan diferensial dengan menggunakan metode simetri Lie. Pada tulisan ini dibahas penentuan koordinat kanonik dari persamaan diferensial Painleve Ince dan mereduksinya
Maulana Malik +3 more
doaj +1 more source
Structure of Eigenvalues of Multi-Point Boundary Value Problems
Advances in Difference Equations, 2010 The structure of eigenvalues of −y″+q(x)y=λy, y(0)=0, and y(1)=∑k=1mαky(ηk), will be studied, where q∈L1([0,1],ℝ), α=(αk)∈ℝm, and 0<η1<⋯ ...
Meirong Zhang, Dongmei Sun, Jie Gao
doaj +1 more source
Complete Groups of Order $3p^6$ [PDF]
Advances in Group Theory and Applications, 2016 For each prime number $p$ with $3 | p − 1$, we construct a group of order $3p^5$, whose automorphism group is a complete group of order $3p^6$.
M. John Curran, Rex S. Dark
doaj +1 more source
Matematika, 2017 Abstrak. Permasalahan dari persediaan adalah bagaimana menentukan jumlah produksi optimal dengan biaya total persediaan yang minimum. Sebuah persediaan dilakukan tidak lain dengan maksud mengantisipasi dan memenuhi permintaan yang akan datang ...
Farid H Badruzzaman +3 more
doaj +1 more source
On modified Bitsadze–Samarskiy problem
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007 We study the non-local boundary value problem which is an analogue of the Bitsadze–Samarskiy problem. For the two-dimensional case we reduce this problem to the local boundary value problem, more exactly to the Dirichlet problem for the analogue of the ...
L. A. Kovaleva
doaj +1 more source
The steady creep layer-fibrous bendings metal-composites plates
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2008 The problem of cross bending the Kirkhoff layers plates of the variable thickness reinforced by filaments of a constant cross-section and working in conditions of steady creep of all phases of a composition is formulated.
A. P. Yankovskii, Yu. V. Nemirovskii
doaj +1 more source
Mathematical modelling for malaria under resistance and population movement
Revista Integración, 2020 In this work, two mathematical models for malaria under resistance are presented. More precisely, the first model shows the interaction between humans and mosquitoes inside a patch under infection of malaria when the human population is resistant to ...
Cristhian Montoya +1 more
doaj
Deligne-Beilinson Cohomology and Abelian Link Invariants
Symmetry, Integrability and Geometry: Methods and Applications, 2008 For the Abelian Chern-Simons field theory, we consider the quantum functional integration over the Deligne-Beilinson cohomology classes and we derive the main properties of the observables in a generic closed orientable 3-manifold. We present an explicit
Enore Guadagnini, Frank Thuillier
doaj +1 more source