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GEOMETRY OF EXPONENTIAL TYPE REGRESSION MODELS AND ITS ASYMPTOTIC INFERENCE
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作者 韦博成 马阳明 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 1993年第2期182-197,共16页
In this paper, exponential type regression models are considered from geometric point of view. The stochastic expansions relating to the estimate are derived and are used to study several asymptotic inference problems... In this paper, exponential type regression models are considered from geometric point of view. The stochastic expansions relating to the estimate are derived and are used to study several asymptotic inference problems. The biases and the covariances relating to the estimate may be calculated based on the expansions. The information loss of the estimate and a limit theorem connected with the observed and expected Fisher informations are obtained in terms of the curvatures. 展开更多
关键词 exponential type Regression exponential Family Nonlinear Models Stochastic Expansion CURVATURE Information.
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Unified treatment of one-range addition theorems for integer and non-integer n-STO, -GTO and -generalized exponential type orbitals with hyperbolic cosine in position, momentum and four-dimensional spaces
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作者 I. I. Guseinov 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第9期176-178,共3页
Simpler formulas are derived for one-range addition theorems for the integer and noninteger n generalized ex- ponential type orbitals, momentum space orbitals, and hyperspherical harmonics with hyperbolic cosine (GET... Simpler formulas are derived for one-range addition theorems for the integer and noninteger n generalized ex- ponential type orbitals, momentum space orbitals, and hyperspherical harmonics with hyperbolic cosine (GETO HC, GMSO HC, and GHSH HC) in position, momentum and four-dimensional spaces, respectively. The final results are expressed in terms of one-range addition theorems of complete orthonormal sets of Ca-exponential type orbitals, Ca- momentum space orbitals and za-hyperspherical harmonics. We notice that the one-range addition theorems for integer and noninteger n-Slater type orbitals and Gaussian type orbitals in position, momentum and four dimensional spaces are special cases of GETO HC, GMSO HC, and GHSH HC. The theorems presented can be useful in the accurate study of the electronic structure of atomic and molecular systems. 展开更多
关键词 electronic structure generalized exponential type orbitals one-range addition theorems Hartree-Fock-Roothaan equations
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The Approximation Properties of Certain Interpolation Operators of Entire Exponential Type (1)
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作者 刘九芬 田继善 《Chinese Quarterly Journal of Mathematics》 CSCD 1993年第2期32-39,共8页
In this paper, the authers introduce certain entire exponential type interpolation operatots and study the convergence problem of these operatots in c(R) or Lp(R) (1≤p<∞)
关键词 entire exponential type interpolation operators covergence property
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Interpolated Tensor Products of Exponential Type Vectors of Unbounded Operators
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《Journal of Mathematics and System Science》 2014年第2期99-104,共6页
In this paper we define the tensor products of spaces of exponential type vectors of closed unbounded operators in Banach spaces. Using the real method of interpolation (K-functional) we prove the interpolation theo... In this paper we define the tensor products of spaces of exponential type vectors of closed unbounded operators in Banach spaces. Using the real method of interpolation (K-functional) we prove the interpolation theorems that permit to characterize of tensor products of spaces of exponential type vectors, We show an application of abstract results to the theory of regular elliptic operators on bounded domains. For such operators the exponential type vectors are root vectors. Thus we describe the tensor products of root vectors of regular elliptic operators on bounded domains. 展开更多
关键词 exponential type vector tensor product interpolation space regular elliptic operator
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Gradient Estimate for an Exponentially Harmonic Type Heat Equation on Riemannian Manifolds
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作者 Jianyi MAO Xinrong JIANG 《Journal of Mathematical Research with Applications》 CSCD 2024年第4期495-501,共7页
In this paper,we derive a Hamilton-Souplet-Zhang type gradient estimate for exponentially harmonic type heat equation on Riemannian manifolds.As its application,we obtain a Liouville type theorem.
关键词 Gradient estimate exponentially harmonic type heat equation Riemannian manifold Liouville theorem
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The essential order of approximation for nearly exponential type neural networks 被引量:3
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作者 XU Zongben WANG Jianjun 《Science in China(Series F)》 2006年第4期446-460,共15页
For the nearly exponential type of feedforward neural networks (neFNNs), it is revealed the essential order of their approximation. It is proven that for any continuous function defined on a compact set of Rd, there... For the nearly exponential type of feedforward neural networks (neFNNs), it is revealed the essential order of their approximation. It is proven that for any continuous function defined on a compact set of Rd, there exists a three-layer neFNNs with fixed number of hidden neurons that attain the essential order. When the function to be approximated belongs to the α-Lipschitz family (0 〈α≤ 2), the essential order of approxi- mation is shown to be O(n^-α) where n is any integer not less than the reciprocal of the predetermined approximation error. The upper bound and lower bound estimations on approximation precision of the neFNNs are provided. The obtained results not only characterize the intrinsic property of approximation of the neFNNs, but also uncover the implicit relationship between the precision (speed) and the number of hidden neurons of the neFNNs. 展开更多
关键词 nearly exponential type neural networks the essential order of approximation the modulus of smoothness of a multivariate function.
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A Generalized Hirota Ansatz to Obtain Soliton-Like Solutions for a (3+l)-Dimensional Nonlinear Evolution Equation 被引量:1
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作者 吴建平 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第8期297-300,共4页
Instead of the usual Hirota ansatz,i.e.,the functions in bilinear equations being chosen as exponentialtypes,a generalized Hirota ansatz is proposed for a (3+1)-dimensional nonlinear evolution equation.Based on theres... Instead of the usual Hirota ansatz,i.e.,the functions in bilinear equations being chosen as exponentialtypes,a generalized Hirota ansatz is proposed for a (3+1)-dimensional nonlinear evolution equation.Based on theresulting generalized Hirota ansatz,a family of new explicit solutions for the equation are derived. 展开更多
关键词 (3+1)-dimensional nonlinear evolution equation bilinear method generalized Hirota ansatz exponential type functions soliton-like solutions
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AN EXPONENTIAL-TYPE WEIGHTED IMPLICIT SCHEME AND ALTERNATING GROUP EXPLICIT ITERATIVE METHOD FOR BURGERS EQUATION
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作者 FENG Xiu-fang TIAN Zhen-fu DAI Shi-qiang 《Journal of Hydrodynamics》 SCIE EI CSCD 2006年第1期63-69,共7页
A new exponential-type weighted implicit difference schcme for solving the Burgers equation was developed and iterated by using the Alternating Group Explicit (AGE) method which has the obvious property of paralleli... A new exponential-type weighted implicit difference schcme for solving the Burgers equation was developed and iterated by using the Alternating Group Explicit (AGE) method which has the obvious property of parallelism. The stability of the method was analyzed with linearization procedure. A model problem was numerically solved with the proposed scheme. The results show that the method is superb or to some existing schemes. 展开更多
关键词 Burgers equation exponential type alternating group explicit method STABILITY
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Ulam-Hyers Stability of Trigonometric Functional Equation with Involution
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作者 Cheng Li-hua 《Communications in Mathematical Research》 CSCD 2018年第2期141-148,共8页
The present work aims to determine the solution of trigonometric functional equation f with involution from group to field by using the properties of involution function, and the solution and Ulam-Hyers stability of t... The present work aims to determine the solution of trigonometric functional equation f with involution from group to field by using the properties of involution function, and the solution and Ulam-Hyers stability of the trigonometric functional equation are also discussed. Furthermore, this method generalizes the main theorem and gives the supplement in some reference. 展开更多
关键词 exponential type functional equation multiplicative function STABILITY
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OPTIMAL ALLOCATION FOR ESTIMATING THE CORRELATION COEFFICIENT OF MORGENSTERN TYPE BIVARIATE EXPONENTIAL DISTRIBUTION BY RANKED SET SAMPLING WITH CONCOMITANT VARIABLE 被引量:1
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作者 XIE Minyu XIONG Ming WU Ming 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第2期249-260,共12页
Ranked set sample is applicable whenever ranking of a set of sample units can be done easily by a judgement method of the study variable or of the auxiliary variable. This paper considers ranked set sample based on th... Ranked set sample is applicable whenever ranking of a set of sample units can be done easily by a judgement method of the study variable or of the auxiliary variable. This paper considers ranked set sample based on the auxiliary variable X which is correlated with the study variable Y, where (X, Y) follows Morgenstern type bivariate exponential distribution. The authors discuss the optional allocation for unbiased estimators of the correlation coefficient p of the random variables X and Y when the auxiliary variable X is used for ranking the sample units and the study variable Y is measured for estimating the correlation coefficient. This paper first gives a class of unbiased estimators of p when the mean 0 of the study variable Y is known and obtains an essentially complete subclass of this class. Further, the optimal allocation of the unbiased estimators is found in this subclass and is proved to be Bayes, admissible, and minimax. Finally, the unbiased estimator of p under the optimal allocation in the case of known θ is reformed for estimating p in the case of unknown θ, and the reformed estimator is shown to be strongly consistent. 展开更多
关键词 Concomitants of order statistic Morgenstern type bivariate exponential distribution optimal allocation ranked set sample unbiased estimator.
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The equivalence between two types of exponential stabilities
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《Chinese Science Bulletin》 SCIE CAS 1998年第18期1583-1584,共2页
关键词 The equivalence between two types of exponential stabilities
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Reconstruction of Non-Bandlimited Functions by Multidimensional Sampling Theorem of Hermite Type
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作者 LI Yue WU FENG Guo 《Journal of Mathematical Research and Exposition》 CSCD 2009年第2期349-354,共6页
In this paper, we prove that under some restricted conditions, the non-bandiimited functions can be reconstructed by the multidimensional sampling theorem of Hermite type in the space of Lp(R^n), 1 〈 p 〈 ∞.
关键词 multidimensional sampling theorem non-bandlimited functions Hermite cardinal series entire functions of exponential type.
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Multivariate irregular sampling theorem 被引量:1
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作者 CHEN GuangGui FANG GenSun 《Science China Mathematics》 SCIE 2009年第11期2469-2478,共10页
In this paper,we prove a Marcinkiewicz-Zygmund type inequality for multivariate entire functions of exponential type with non-equidistant spaced sampling points. And from this result,we establish a multivariate irregu... In this paper,we prove a Marcinkiewicz-Zygmund type inequality for multivariate entire functions of exponential type with non-equidistant spaced sampling points. And from this result,we establish a multivariate irregular Whittaker-Kotelnikov-Shannon type sampling theorem. 展开更多
关键词 Marcinkiewicz-Zygmund type inequality multivariate irregular sampling theorem entire function of exponential type 94A20 94A12 41A35 41A80
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The Problem of Timan on the Precise Order of the Best Approximations of Multivariate Functions
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作者 康淑瑰 刘永平 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2001年第2期177-184,共8页
The problem of Timan on finding a necessary and sufficient condition for is solved. The condition is that
关键词 modulus of continuity best appraximation entire function of exponential sphesrical type σ.
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Best constants of harmonic approximation of some convolution classes associated with Laplace operator in d-variables
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作者 LING Bo LIU YongPing 《Science China Mathematics》 SCIE 2013年第2期301-313,共13页
In this paper,we consider the best EFET(entire functions of the exponential type) approximations of some convolution classes associated with Laplace operator on R d and obtain exact constants in the spaces L1(R2) and ... In this paper,we consider the best EFET(entire functions of the exponential type) approximations of some convolution classes associated with Laplace operator on R d and obtain exact constants in the spaces L1(R2) and L2(Rd).Moreover,the best constants of trigonometric approximations of their analogies on Td are also gained. 展开更多
关键词 best approximation exact constant Laplace operator trigonometric polynomials entire functionsof exponential type
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DEVELOPMENT OF REALISTIC QUALITY LOSS FUNCTIONS FOR INDUSTRIAL APPLICATIONS
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作者 Abdul-Baasit SHAIBU Byung Rae CHO 《Journal of Systems Science and Systems Engineering》 SCIE EI CSCD 2006年第4期385-398,共14页
A number of quality loss functions, most recently the Taguchi loss function, have been developed to quantify the loss due to the deviation of product performance from the desired target value. All these loss functions... A number of quality loss functions, most recently the Taguchi loss function, have been developed to quantify the loss due to the deviation of product performance from the desired target value. All these loss functions assume the same loss at the specified specification limits. In many real life industrial applications, however, the losses at the two different specifications limits are often not the same. Further, current loss functions assume a product should be reworked or scrapped if product performance falls outside the specification limits. It is a common practice in many industries to replace a defective item rather than spending resources to repair it, especially if considerable amount of time is required. To rectify these two potential problems, this paper proposes more realistic quality loss functions for proper applications to real-world industrial problems. This paper also carries out a comparison studies of all the loss functions it considers. 展开更多
关键词 Modified quadratic loss type exponential loss type exponential loss expected loss within-specification loss out-of-specification loss
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