... Fields RF Transmission Lines Antennas Bridge Circuits Null Networks Chapter Physical and Chemical Data Units Classical Mechanics Fluidics and Thermodynamics Waves and Optics Relativistic and Atomic ... represent the variables, and a0 through an represent constants, usually real numbers Existence of solutions Suppose there exists a set of m linear equations in n variables If m Ͻ n, there exists ... 551 Suggested Additional References 553 Index 555 Preface This is a comprehensive sourcebook of definitions, formulas, units, constants, symbols, conversion factors, and miscellaneous data for use...
Ngày tải lên: 31/03/2014, 16:19
... Fuzzy Sets Syst 159, 730–738 (2008) doi:10.1016/j.fss.2007.07.011 Mirmostafee, AK, Moslehian, MS: Fuzzy versions of Hyers-Ulam-Rassias theorem Fuzzy Sets Syst 159, 720–729 (2008) doi:10.1016/j.fss.2007.09.016 ... Trans Am Math Soc 347, 3111–3119 (1995) doi:10.2307/2154775 Hyers, DH, Isac, G, Rassias, ThM: Stability of Functional Equations in Several Variables Birkhäuser, Basel (1998) Hyers, DH, Isac, ... Hyers-Ulam-Rassias stability of a Pexiderized quadratic inequality Math Inequal Appl 4, 93–118 (2001) Jung, S- M: Hyers-Ulam-Rassias stability of Jensen s equation and its application Proc Am Math Soc...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Editorial Harnack’s Estimates: Positivity and Local Behavior of Degenerate and Singular Parabolic Equations" pdf
... half spaces In this case they assume there exists a Lie structure over RN+1 under which L is left invariant Finally, these results are applied to several examples of operators Lewis and Vogel study ... o forms and by potentials in suitable Kato classes Similar results were obtained by Biroli in a previous paper for operators associated to subelliptic p-Laplacians, but the techniques used there ... Problems but comments on the geometric and probabilistic significance of Harnack s inequalities as well The attention is mainly on classical results and an extensive and thorough list of references...
Ngày tải lên: 22/06/2014, 19:20
CHAPTER 7 :POISSON''''S AND LAPLACE''''S EQUATIONSA doc
... enclosing surface, or a mixture of known values of V and E: Before using Laplace 's equation or Poisson 's equation in several examples, we must pause to show that if our answer satisfies Laplace 's ... Laplace 's equation The first and simplest method is that of direct integration, and we shall use this technique to work several examples in various coordinate systems in this section In Sec 7.5 ... Contents | POISSON 'S AND LAPLACE 'S EQUATIONS | v v 7.21 In free space, let v 2000 =r2:4 a Use Poisson 's equation to find V r if it is assumed that r2 Er when r 0, and also that V as r I...
Ngày tải lên: 07/08/2014, 20:23
CHAPTER 10: TIME-VARYING FIELDS AND MAXWELL''''S EQUATIONS pot
... define emf as used in (1) or (2) The emf is obviously a scalar, and (perhaps not so obviously) a dimensional check shows that it is measured in volts We define the emf as I emf E Á dL 3 and note ... over identical surfaces The surfaces are perfectly general and may be chosen as differentials, r  E Á dS À @B Á dS @t and rÂEÀ @B @t 6 This is one of Maxwell 's four equations as written in ... Á We should first look at the point form of Ampere 's circuital law as it applies to steady magnetic fields, rÂEÀ | v v This is discussed in several of the references listed in the Suggested...
Ngày tải lên: 07/08/2014, 20:23
15 Maxwell’s Equations for the Electromagnetic Fied
... free space is transverse This is exactly what is observed in the Fresnel–Arago interference equations Thus, in Maxwell s theory this result is an immediate consequence of his equations, whereas ... equation (which shall be discussed shortly) and Newton s second law of motion, these equations provide a complete description of the classical dynamics of interacting charged particles and electromagnetic ... the same Maxwell s equations showed that the wave equation for optics, if his theory was correct, was no longer a hypothesis but rested on firm experimental and theoretical foundations The association...
Ngày tải lên: 19/04/2016, 11:40
Markov processes and the Kolmogorov equations
... h S T F s = v s; S s : This is a special case of Theorem 5.51 Because v t; S t is a martingale, the sum of the formula, dt terms in dv t; S t must be h By Itˆ s o i dv t; S ... variance diffusions, Working Paper, Stanford University, 1975: dS t = rS t dt + S t dBt; where The “volatility” sponding Black-Scholes equation is S ,1t decreases with increasing stock price ... processes and the Kolmogorov equations and the boundary condition vt; 0 = 0; 187 t T: An example of such a process is the following from J.C Cox, Notes on options pricing I: Constant elasticity...
Ngày tải lên: 18/10/2013, 03:20
Functional analysis sobolev spaces and partial differential equations
... Universitext For other titles in this series, go to www.springer.com/series/223 Haim Brezis Functional Analysis, Sobolev Spaces and Partial Differential Equations 1C Haim Brezis Distinguished ... lemma has many important applications in analysis It is a basic tool in proving some seemingly innocent existence statements such as “every vector space has a basis” (see Exercise 1.5) and “on ... convex subsets such that A ∩ B = ∅ Assume that A is closed and B is compact Then there exists a closed hyperplane that strictly separates A and B Proof Set C = A − B, so that C is convex, closed (check!),...
Ngày tải lên: 04/02/2014, 11:10
Tài liệu Boundary Value Problems, Sixth Edition: and Partial Differential Equations pptx
... c1 cosh(λt) + c2 sinh(λt) as the general solution of Eq (14), where c1 and c2 are arbitrary constants Example: Mass–Spring–Damper System The displacement of a mass in a mass–spring–damper system ... sin(λa) is not 0, the only possibility is that c2 = In this case we find that the solution is u(x) ≡ 0, < x < a Physically, this means that the column stands straight and transmits the load to its support, ... mass in a mass–spring–damper system, starting 18 Chapter Ordinary Differential Equations Figure Mass–spring–damper system with an external force from rest, with an external sinusoidal force (see...
Ngày tải lên: 17/02/2014, 14:20
Entropy and partial differential equations evans l c
... problem a Small noise asymptotics b Perturbations against the flow Appendices: A Units and constants B Physical axioms References INTRODUCTION A Overview This course surveys various uses of “entropy” ... as we consider our processes on “slower and slower time scales” The model without dissipation corresponds simply to setting R1 ≡ 0, R2 ≡ To further develop our model we next assume as an instance ... Although we will for simplicity of exposition mostly discuss simple fluid systems, it is important to understand that many interpretations are possible (See, e.g., Zemansky [Z].) Extensive parameter...
Ngày tải lên: 17/03/2014, 14:29
harmonic analysis and partial differential equations - b. dahlberg, c. kenig
... compactness arguments) we have used Hence it is not possible to solve the Dirichlet problem for, say Lipschitz-domains by approximating with C domains k , solve some Dirichlet problems for these and ... follows from H lder 's inequality Fact 3: Connection between BMO and Carleson measures Carleson measures originally appeared as answers to the following question Question: Which positive measures ... (x)dx and de ne the space BMOp to consist of those functions f such that kf kp; < Thus (BMOp; k kp; ) becomes a semi-normed vectorspace with semi-norm vanishing on the constant functions The...
Ngày tải lên: 31/03/2014, 15:16
Báo cáo hóa học: " Research Article First-Order Singular and Discontinuous Differential Equations" docx
... Equations with Discontinuous Righthand Sides, vol 18 of Mathematics and Its Applications (Soviet Series), Kluwer Academic Publishers, Dordrecht, The Netherlands, 1988 11 S Heikkil¨ and V Lakshmikantham, ... of the solutions In Section we prove two existence results in case f does not have such a strong bound as in Section singular problems , which requires the addition of some assumptions over the ... continuous cases e Discontinuous Lower and Upper Solutions Another modification of the concepts of lower and upper solutions concerns the possibility of allowing jumps in their graphs Since the task...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " Research Article Stability of Mixed Type Cubic and Quartic Functional Equations in Random Normed Spaces" potx
... Hyers, G Isac, and Th M Rassias, Stability of Functional Equations in Several Variables, vol 34 of Progress in Nonlinear Differential Equations and Their Applications, Birkh¨ user, Boston, Mass, ... 1991, Gajda answered the question for the case p > 1, which was raised by Rassias This new concept is known as Hyers-Ulam-Rassias stability of functional equations see 5–12 Jun and Kim 13 introduced ... adopt the usual terminology, notations, and conventions of the theory of random normed spaces, as in 19–21 Throughout this paper, Δ is the space of distribution functions that is, the space of...
Ngày tải lên: 22/06/2014, 02:20
POWER SERIES TECHNIQUES FOR A SPECIAL SCHRÖDINGER OPERATOR AND RELATED DIFFERENCE EQUATIONS MORITZ docx
... made use of the abbreviations A≡ a2 ≥ 0, B≡ (b − 1)2 ≥0 (2.6) for the sake of simplicity In the next section, we are going to solve (2.3) in these three special cases—the same as in Bessel s case ... a one-dimensional subspace of solutions y∗ is obtained—being of type (3.2)—which satisfies the integrability condition (4.1) for some γ > On the one hand, if b ≥ −1, this subspace is spanned by ... Power series techniques and Schr¨ dinger operators o (i) x is the dimensionless radial distance (in the plane) (ii) ψ gives information on the probability density for measuring a particle signal...
Ngày tải lên: 23/06/2014, 00:20
NONSMOOTH AND NONLOCAL DIFFERENTIAL EQUATIONS IN LATTICE-ORDERED BANACH SPACES ¨ SIEGFRIED CARL AND doc
... f satisfies the hypotheses (f0) and (f1) The hypothesis (c) is also valid, whence the asserted results follow from Theorem 3.2 Example 3.4 Consider the following system of IVPs: v (s) ds v (s) ds ... (u,v) = 1+ 1+ v (s) ds v (s) ds v (s) ds v (s) ds v(1) + v(1) ,2 √ , t+2 , 1+ 1+ u (s) ds u (s) ds u (s) ds u (s) ds u(1) + u(1) , | , (4.17) The hypotheses (f0), (f1), (c), and (d) hold, with respect to 1-norm ... hypotheses (g0) and (g1) imply that f satisfies the hypotheses (f0) and (f1) The hypotheses (c0) and (d) are also valid, whence the asserted results follow from Theorem 5.2 S Carl and S Heikkil¨...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo toán học: "Dimension groups and finite difference equations " ppsx
Ngày tải lên: 05/08/2014, 09:46
Báo cáo toán học: "Mountain Pass Theorem and Nonuniformly Elliptic Equations" doc
... linear subspace of E Suppose I belongs to Cw (E) and satisfies the Palais-Smale condition Assume the following conditions hold (i) There exist a bounded neighborhood D of in V and a constant α such ... then J belongs to C (W 1,p (Ω)) and satisfies conditions in classical Mountain Pass Theorem This situation has been studied in [8] p In this paper, we consider h ∈ L p−1 (Ω) In this case, the value ... Hence, J possesses an unbounded sequence of critical values Therefore, J possesses infinitely many critical points in Y References A Ambrosette and P H Rabinowitz, Dual variational methods in critical...
Ngày tải lên: 06/08/2014, 05:20
Báo cáo toán học: "Continued fractions and Catalan problems" pot
... implies that its subtree must follow or be the same as that of v1 The conclusion is that they are in the same subtree A similar argument applies to v2 and v1 so that all three vertices must be ... Permutations and ordered trees The previous problem used an existing bijection between the set of ordered trees and the set of lattice paths to get the desired result We seek a similar approach ... written as a continued fraction that subsumes the previous continued fractions is our main result It is simple, yet has some interesting applications the electronic journal of combinatorics (2000),#R45...
Ngày tải lên: 07/08/2014, 06:20
Phương trình vi phân - đại số và phương trình sai phân ẩn = Differential-Algebraic Equations and Implivit Difference Equations
... tends to zero, the s ta b ility radius fo r s in g u la rly perturbed systems tends to the sm allest value o f the s ta b ility radius fo r the “ reduced s lo w system s and that fo r the “ fast ... solution of a class o f quasi-linear difference equations Thanks to the index-1 {quasi-index1) property of linear parts, the initial infinite system can be decom posed into subsystem s consisting ... (JiiTerential equations I Introduction In the past decade, considerable attention lias been devoted to some robustness measures o f continuous and discrete time systems The concept o f stability...
Ngày tải lên: 18/03/2015, 11:46
Theoretical considerations in the application of non equilibrium greens functions (NEGF) and quantum kinetic equations (QKE) to thermal transport
... Transport In this section, we discuss only theoretical issues in thermal transport with a mind for nanosystems These are essentially the big questions that the thesis will try to address [Transport ... ideas of elastic scattering (N -processes) and inelastic processes (U -processes) are not very obvious It is important because we need to know what processes “kills” the momenta of the carriers ... -processes redistributing phonons and of U -processes “killing” crystal momentum is convincing and physically sound but Brillouin zones and momenta are all bulk concepts Thus for finite systems,...
Ngày tải lên: 09/09/2015, 18:57