Kizmaz [13] studied the difference sequence spaces ∞（A）, c（A）, and co（A）. Several article dealt with the sets of sequences of m-th order difference of which are bounded, convergent, or convergent to zero. Alta...Kizmaz [13] studied the difference sequence spaces ∞（A）, c（A）, and co（A）. Several article dealt with the sets of sequences of m-th order difference of which are bounded, convergent, or convergent to zero. Altay and Basar [5] and Altay, Basar, and Mursaleen [7] introduced the Euler sequence spaces e0^r, ec^r, and e∞^r, respectively. The main purpose of this article is to introduce the spaces e0^r△^（m））, ec^r△^（m））, and e∞^r△^（m））consisting of all sequences whose mth order differences are in the Euler spaces e0^r, ec^r, and e∞^r, respectively. Moreover, the authors give some topological properties and inclusion relations, and determine the α-, β-, and γ-duals of the spaces e0^r△^（m））, ec^r△^（m））, and e∞^r△^（m））, and the Schauder basis of the spaces e0^r△^（m））, ec^r△^（m））. The last section of the article is devoted to the characterization of some matrix mappings on the sequence space ec^r△^（m））.展开更多
The method of moving surfaces is an effective tool to implicitize rational parametric surfaces,and it has been extensively studied in the past two decades.An essential step in surface implicitization using the method ...The method of moving surfaces is an effective tool to implicitize rational parametric surfaces,and it has been extensively studied in the past two decades.An essential step in surface implicitization using the method of moving surfaces is to compute aμ-basis of a parametric surface with respect to one variable.Theμ-basis is a minimal basis of the syzygy module of a univariate polynomial matrix with special structure defined by the parametric equation of the rational surface.In this paper,we present an efficient algorithm to compute theμ-basis of a parametric surface with respect to a variable based on the special structure of the corresponding univariate polynomial matrix.Analysis on the computational complexity of the algorithm is also provided.Experiments demonstrate that our algorithm is much faster than the general method to compute theμ-bases of arbitrary polynomial matrices and outperforms the F5 algorithm based on Gröbner basis computation for relatively low degree rational surfaces.展开更多
First of all, using the relations （2.3）, （2.4）, and （2.5）, we define a complex Clifford algebra Wn and the Witt basis. Secondly, we utilize the Witt basis to define the operators δ and δ on Kaehler manifolds w...First of all, using the relations （2.3）, （2.4）, and （2.5）, we define a complex Clifford algebra Wn and the Witt basis. Secondly, we utilize the Witt basis to define the operators δ and δ on Kaehler manifolds which act on Wn-valued functions. In addition, the relation between above operators and Hodge-Laplace opeator is argued. Then, the Borel-Pompeiu formulas for W-valued functions are derived through designing a matrix Dirac operator D and a 2 × 2 matrix-valued invariant integral kernel with the Witt basis.展开更多
文摘Kizmaz [13] studied the difference sequence spaces ∞（A）, c（A）, and co（A）. Several article dealt with the sets of sequences of m-th order difference of which are bounded, convergent, or convergent to zero. Altay and Basar [5] and Altay, Basar, and Mursaleen [7] introduced the Euler sequence spaces e0^r, ec^r, and e∞^r, respectively. The main purpose of this article is to introduce the spaces e0^r△^（m））, ec^r△^（m））, and e∞^r△^（m））consisting of all sequences whose mth order differences are in the Euler spaces e0^r, ec^r, and e∞^r, respectively. Moreover, the authors give some topological properties and inclusion relations, and determine the α-, β-, and γ-duals of the spaces e0^r△^（m））, ec^r△^（m））, and e∞^r△^（m））, and the Schauder basis of the spaces e0^r△^（m））, ec^r△^（m））. The last section of the article is devoted to the characterization of some matrix mappings on the sequence space ec^r△^（m））.
文摘The method of moving surfaces is an effective tool to implicitize rational parametric surfaces,and it has been extensively studied in the past two decades.An essential step in surface implicitization using the method of moving surfaces is to compute aμ-basis of a parametric surface with respect to one variable.Theμ-basis is a minimal basis of the syzygy module of a univariate polynomial matrix with special structure defined by the parametric equation of the rational surface.In this paper,we present an efficient algorithm to compute theμ-basis of a parametric surface with respect to a variable based on the special structure of the corresponding univariate polynomial matrix.Analysis on the computational complexity of the algorithm is also provided.Experiments demonstrate that our algorithm is much faster than the general method to compute theμ-bases of arbitrary polynomial matrices and outperforms the F5 algorithm based on Gröbner basis computation for relatively low degree rational surfaces.
基金Project supported in part by the National Natural Science Foundation of China (10771174,10601040,10971170)Scientific Research Foundation of Xiamen University of Technology (700298)
文摘First of all, using the relations （2.3）, （2.4）, and （2.5）, we define a complex Clifford algebra Wn and the Witt basis. Secondly, we utilize the Witt basis to define the operators δ and δ on Kaehler manifolds which act on Wn-valued functions. In addition, the relation between above operators and Hodge-Laplace opeator is argued. Then, the Borel-Pompeiu formulas for W-valued functions are derived through designing a matrix Dirac operator D and a 2 × 2 matrix-valued invariant integral kernel with the Witt basis.
