نتایج جستجو برای: quad richter differential method

تعداد نتایج: 1873399  

Journal: :iranian journal of optimization 0
j. biazar department of mathematics, faculty of sciences, university of guilan. m. eslami department of mathematics, faculty of sciences, university of guilan.

differential transform method has been applied to solve many functional equations so far. in this article, we have used this method to solve wave-like equations. differential transform method is capable of reducing the size of computational work. exact solutions can also be achieved by the known forms of the series solutions. some examples are prepared to show theefficiency and simplicity of th...

Journal: :sahand communications in mathematical analysis 2015
mohammad shahriari aliasghar jodayree akbarfam

this paper deals with the boundary value problem involving the differential equationbegin{equation*}    ell y:=-y''+qy=lambda y, end{equation*} subject to the standard boundary conditions along with the following discontinuity  conditions at a point $ain (0,pi)$ begin{equation*}    y(a+0)=a_1 y(a-0),quad y'(a+0)=a_1^{-1}y'(a-0)+a_2 y(a-0),end{equation*}where $q(x),  a_1 , a_2$ are  real, $qin l...

Journal: :Cancer 2005

Journal: :Physics Today 2019

Journal: :Mitteilungen des Instituts für Österreichische Geschichtsforschung 1906

Journal: :CoRR 2017
Ryan Viertel Braxton Osting

A generalization of vector fields, referred to as N -direction fields or cross fields when N = 4, has been recently introduced and studied for geometry processing, with applications in quadrilateral (quad) meshing, texture mapping, and parameterization. We make the observation that cross field design for two-dimensional quad meshing is related to the well-known GinzburgLandau problem from mathe...

The multi-level programming problems are attractive for many researchers because of their application in several areas such as economic, traffic, finance, management, transportation, information technology, engineering and so on. It has been proven that even the general bi-level programming problem is an NP-hard problem, so the multi-level problems are practical and complicated problems therefo...

2003
L. P. Zhang Z. J. Wang

A block lower-upper symmetric Gauss-Seidel (BLU-SGS) implicit dual time-stepping method is developed for moving body problems with hybrid dynamic grids. To simulate flows over complex configurations, a hybrid grid method is adopted in this paper. Body-fitted quadrilateral (quad) grids are generated first near solid bodies. An adaptive Cartesian mesh is then generated to cover the entire computa...

Journal: :Revista De La Union Matematica Argentina 2022

Considering singular Sturm--Liouville differential expressions of the type \[ \tau_{\alpha} = -(d/dx)x^{\alpha}(d/dx) + q(x), \quad x \in (0,b), \; \alpha \mathbb{R}, \] we employ some Sturm comparison-type results in spirit Kurss to derive criteria for $\tau_{\alpha}$ be limit point and circle case at $x=0$. More precisely, if $\alpha \mathbb{R}$ $0 0$ such that $0<x$ sufficiently small, \begi...

Journal: :Discussiones Mathematicae Graph Theory 1996
Pak-Tung Ho

In this note we give a simple proof of a result of Richter and Siran by basic counting method, which says that the crossing number of K3,n in a surface with Euler genus ε is

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