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Integral equation approach for computing green's function on unbounded simply connected region

Integral equation approach for computing green's function on unbounded simply connected region

Nasser (2007) has developed a new method for solving the interior and exterior Dirichlet problem in simply connected regions with smooth boundaries. His method is based on two uniquely Fredholm integral equations of the second kind with the generalized Neumann kernel. Recently, his method has been used by Alagele (2012) for computing Green’s function on bounded simply connected region only. This research wishes to extend the work by Alagele (2012) for computing Green’s function on an unbounded simply connected region by getting a unique solution of the exterior Dirichlet problem using integral equation approach with the generalized Neumann kernel.
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A boundary integral equation for the exterior neumann problem on multiply connected region

A boundary integral equation for the exterior neumann problem on multiply connected region

The Neumann problem is often solved by conformal mapping for arbitrary simply connected region. The basic technique is to transform a given boundary value problem in the xy plane into a simpler one in the uv plane where they can be solved easily. The desired answer can be obtained by transforming back to the original region.

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An integral equation method for solving neumann problems on simply and multiply connected regions with smooth boundaries

An integral equation method for solving neumann problems on simply and multiply connected regions with smooth boundaries

Chapter 4 is on extended of Chapter 2 by formulating a new boundary integral equation with Neumann kernel for solving the interior Neumann problem on multiply connected regions with smooth boundaries. Chapter 4 has reduced the Neumann problem into the equivalent Riemann-Hilbert problem from which an integral equation is constructed. The previous Chapter 3 has reduced the exterior Neumann problem on a simply connected region to exterior Riemann- Hilbert problem by using Cauchy-Riemann equations. This leads to an integral equation with the Neumann kernel. This chapter deals with the reduction of exterior Neumann problem on a multiply connected region to the exterior Riemann-Hilbert problem. Thus this chapter extends the results of Chapter 3.
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Computing Robin problem on unbounded simply connected domain via an integral equation with the generalized Neumann kernel

Computing Robin problem on unbounded simply connected domain via an integral equation with the generalized Neumann kernel

Many applications of the Laplacian differential operator are related to physical geodesy, measurement [1-2], while the application of mixed boundary value problem has been developed only during recent century [3]. In this study the mixed boundary value problem in the literature is the mixed D-N boundary value problem BVP . In this paper the applications of the mixed D-N of BVP in potential theory can be seen in [4]. A mixed BVP has mixed D-N type boundary conditions [5-6]. A Robin problem is a mixed BVP with a linear combination of D-N conditions, commonly called a Robin condition [6]. Many analytical methods for computing the Robin BVP for the Laplace’s equation ∆u=0 in a simply connected region are limited to special domains. For general shape region, we have to resort to numerical methods [7–9]. Robin’s condition is also called the third boundary condition in some books such as [10–12].
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Minimising L [to the power of p] distortion for mappings between annuli : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Mathematics at Massey University, Albany, New Zealand

Minimising L [to the power of p] distortion for mappings between annuli : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Mathematics at Massey University, Albany, New Zealand

then the Riemann l\1apping Theorem see Section 1.5 t ells us that an,· simply connected region which is not equal to the \\·hole complex plane C or the ext ended complex plane the Rieman[r]

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Minimising L [to the power of p] distortion for mappings between annuli : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Mathematics at Massey University, Albany, New Zealand

Minimising L [to the power of p] distortion for mappings between annuli : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Mathematics at Massey University, Albany, New Zealand

then the Riemann l\1apping Theorem see Section 1.5 t ells us that an,· simply connected region which is not equal to the \\·hole complex plane C or the ext ended complex plane the Rieman[r]

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A Boundary integral equation for the Neumann problem in
bounded multiply connected region

A Boundary integral equation for the Neumann problem in bounded multiply connected region

Recently Husin [21] and Murid et al. [1] have reduced the Neumann problem on a simply connected region to the Riemann-Hilbert problem. The Riemann-Hilbert problem is then formulated as a boundary integral equation which is uniquely solvable.

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Solving dirichlet and neumann problems with discontinuous coefficients on bounded simply and multiply connected regions

Solving dirichlet and neumann problems with discontinuous coefficients on bounded simply and multiply connected regions

Chapter 5.3 includes a brief summary of the main results of thesis and some suggestions for future works. Briefly, based on the contents of Chapters 3 and 4, a method will be presented to compute mixed boundary value problem in any arbitrary simply connected region as the following orders: First, some introductions about mixed boundary value problem shall be presented. Next, the mixed boundary value problem will be re-changed to a Riemann-Hilbert problem with discontinuous coefficients. Finally, this Riemann-Hilbert problem with discontinuous coefficients will be solved by decomposing it into two Dirichlet problems, one with discontinuous coefficients and another one that has coefficients with singularity.
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Markets in political influence: rent seeking, networks and groups

Markets in political influence: rent seeking, networks and groups

That social structure can improve efficiency is important, and as mentioned earlier, the baseline from which costs of rent-seeking are measured is not clearly defined in economic theory. It is generally shown that loyalties and trust embedded in non-economic relationships reduces the costs of free-riding and enhances the probabilities of collective actions Marwell et al. (1988); Choi et al. (2011). But cronyism is the dark-side of social networks and their loyalties, and is likely to generate growth costs when decisions favour the trust and loyalty of close ties rather than the e ffi ciency from better choices further distant in the network. There are well known costs from being limited for choice by one’s social network, such as higher prices paid when buyers and sellers deal exclusively (Vignes and Etienne, 2011). Perhaps a policy goal of providing a better-connected national social networks that could break down class divisions and reduce crony social behaviour. If social ties improve trust and generate political influence, it may be the case that donations are used as signals of trust by less well-connected firms, rather than by the firms who are have a high degree of trust from multiple social ties. Alternatively, if markets for political influence resemble credit markets, donations and regular lobbying could be a relationship ‘fee’ or some other signal that the credit is sound and that social convention will be followed. Perhaps the revolving door of politicians into business is evidence of future credit pay-offs and be considered a rent-seeking cost? Anthropologists have developed a picture of early markets that are run on social credit, and the trust that religious institutions and social conventions provided (Graeber, 2011). In the covert market for political influence, perhaps these ancient notions of markets provide a more practical understanding.
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Petrology and Tectonic Setting of Volcanic Rocks in West and South West of Salafchegan, Qom, Iran

Petrology and Tectonic Setting of Volcanic Rocks in West and South West of Salafchegan, Qom, Iran

The Salafchegan region is located in CIVB magmatic zone with direction of North West-South East and composed of Tertiary volcanic intrusive rocks with a length of 1700 km and an average width of about 150 km. there weren’t any out- crops for Precambrian basement in the region and the oldest rock units in Sa- lafchegan area, was sedimentary rocks in Jurassic era (Figure 2). The magmatic activity in this region started in early Eocene and continued until late Eocene [32]. This volcanic complex in the hole of region consists of basaltic to rhyolitic lavas and associated pyroclastic with sedimentary rocks among these layers (Figure 2). The Paleogene volcano-sedimentary sequence has been covered dis- continuously with unconformity layers of red and calcareous units [32]. These sequences invaded by granitoid masses with calc-alkaline nature. Shallow intru- sive activity continued until the late Miocene and tectonic settings were occurred in Pliocene after the collision. Within the volcanic masses of the area is seen the andesitic dikes to be seen which has cut the volcanic masses that indicates exten- sive stretching at the end of the volcanic stage.
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Polynomial representations of symplectic groups

Polynomial representations of symplectic groups

In this section we describe a formula, due to Weyl [1], for the dimension of an irreducible rational module of a semisimple simply connected algebraic group G over an algebraically close[r]

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Integral representations for solutions of some BVPs for the Lamé system in multiply connected domains

Integral representations for solutions of some BVPs for the Lamé system in multiply connected domains

Section 6 is devoted to the traction problem. It turns out that the solution of this problem does exist in the form of a double layer potential if, and only if, the given forces are balanced on each connected component of the boundary. While in a simply connected domain the solution of the traction problem can be always represented by means of a double layer potential (provided that, of course, the given forces are balanced on the boundary), this is not true in a multiply connected domain. Therefore the presence or absence of “ holes ” makes a difference.

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1503.04806.pdf

1503.04806.pdf

Now, in the special context of the (2, 0) theories, it is well known that the center of the associated simply connected Lie group also determines the obstruction to specifying a partitio[r]

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Shen_unc_0153D_19179.pdf

Shen_unc_0153D_19179.pdf

The theorem of Matsushita reveals that irreducible holomorphic symplectic varieties have special fibration structures. Under some condition, Hwang further showed the base space has to be a projective space. Theorem 3.3.1. (Matsushita) [MATSU] Let X be an irreducible holomorphic symplectic manifold of dimen- sion 2n with symplectic form σ. If f : X → B is a proper surjective morphism with connected fibers, onto a normal, projective variety B, 0 < dim B < 2n, then

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To Study the Failure Mode and Effective Analysis of Trailing Arm Weldment

To Study the Failure Mode and Effective Analysis of Trailing Arm Weldment

A trailing arm is a simple mechanical design is often used in the rear suspension of rear wheel drive vehicles and some of them are inexpensive used in front drive vehicles also. In this kind of suspension, trailing arm is connected to the rear axle and to the unibody frame. This controls the motion of the rear axle relative to the vehicle frame through pivot joints on both

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Analyzing of free transverese vibration of an elastically 
		connected rectangular plate membrance system with a Pasternak layer 
		in between

Analyzing of free transverese vibration of an elastically connected rectangular plate membrance system with a Pasternak layer in between

This paper theoretically analyzes free transverse vibrations of an elastically connected rectangular plate- membrane system with a Pasternak layer in-between. Solutions of the problem are formulated by using the Navier method. Also natural frequencies of the system are determined. The effect of Pasternak layer on the natural frequencies of this mixed system is discussed in a numerical example. Increasing shear foundation modulus of the Pasternak layer causes an increase in the value of natural frequency of the system (ω imn ); however this influence of the shear foundation modulus of
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PagePac Door Phone Controller V-5324001 Installation and Operation Manual

PagePac Door Phone Controller V-5324001 Installation and Operation Manual

This option is used in what is called “Ringdown Mode” to auto-dial a particular extension or outside-line phone number. The Door Phone Controller has two memory locations for holding user stored telephone numbers. Phone numbers can be for telephones within the same building or off-premises. These memory locations are used exclusively in Ringdown Mode. Only one memory location is active at a time. To select the active location for the phone number, a telephone connection to the Door Phone Controller must be made (by calling the extension number of the Door Phone). Once connected dial in “##1”, this selects Memory Location 1; if you were to dial in “##2”, you would select Memory Location 2.
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Effects of Pasternak layer on forced transverse vibration of a 
		Timoshenko double beam system with compressive axial load

Effects of Pasternak layer on forced transverse vibration of a Timoshenko double beam system with compressive axial load

Stojanovic et al. [8] analyzed free vibration and static stability of two elastically connected beams with Winkler elastic layer in-between with the influence of rotary inertia and transverse shear. The motion of the system is described by a homogeneous set of two partial differential equations, which is solved by using the classical Bernoulli-Fourier method. The boundary value and initial value problems are solved. The natural frequencies and associated amplitude ratios of an elastically connected double-beam complex system and the analytical solution of the critical buckling load are determined. The presented theoretical analysis is illustrated by a numerical example, in which the effect of physical parameters characterizing the vibrating system on the natural frequency, the associated amplitude ratios and the critical buckling load are discussed. Stojanovic et Kozic [9] discussed the case of forced vibration of two elastically connected beams with Winkler elastic layer in- between and the effect of axial compression force on amplitude ratio of system vibration for three types of external forcing (arbitrarily continuous harmonic excitation, uniformly continuous harmonic excitation and concentrated harmonic excitation). They determined general conditions of resonance and dynamic vibration absorption. In paper [10], Stojanovic et al. discussed the analytic analysis of static stability of a system consisting of three elastically connected Timoshenko beams on an elastic foundation. They provided expressions for critical force of the system under the influence of elastic Winkler layers. Stojanovic et al. [11] using the example of multiple elastically connected Timoshenko and Reddy-Bickford beams, determined the analytical forms of natural frequencies, their change under the effect of axial compression forces and the conditions for static stability for a different number of connected beams.
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Singular Cochains and rational Homotopy Type

Singular Cochains and rational Homotopy Type

connected rational spaces is equivalent to the homotopy category H oDLA 1 (Q ) of connected differential graded Lie Q-algebras [38]. Letting Q (X ) be a Quillene’s minimal Lie algebra model for simply connected space X, a rephrasing of this could say that a model Q induces a bijection on weak rational homotopy types, and that two maps f, g : X → Y are Q-locally homotopic if and only if Q (f ) ∼ Q (g ) in DLA 1 (Q). Consequently any statement or problem about H oTop 1 Q may be translated into an equivalent statement in the purely algebraic category DLA 1 (Q). The model Q is called a ”complete rational homotopy invariant” on simply connected spaces.
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On indices and eigenvectors of quivers

On indices and eigenvectors of quivers

Lemma 2. For any strongly connected simply laced quiver there exist real fractional-polynomial formulas, which express the coordinates of an eigenvector in terms of eigenvalues. In other words, let v (1) , . . . , v (k) be all linearly independent vectors of Q, which, by Remark 2, correspond to eigenvalues λ 1 , . . . , λ k . Then there exist functions f 1 , . . . , f n from the field

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