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ANSWER: 作品数：829被引量：193H指数：7; 导出分析报告; 相关领域：文化科学更多>>; 相关作者：李鑫张峰刘启和胡亚萍尤晋元更多>>; 相关机构：电子科技大学上海交通大学北京大学安庆市第一中学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划中国博士后科学基金国家社会科学基金更多>>

A Kind of Fibonacci Sequence: 《Chinese Science Bulletin》1994年第4期348-349,共2页施锡泉; Project supported by the National Natural Science Foundation of China and Alexander von Humboldt Foundation of Germany; In Ref. [1], Freitag raised a conjecture that for the sequence {A_n} defined byA_n+2=A_n+1^1/2+A_n^1/2for all n≥1, lim_n→∞A_n=4 regard...; 关键词：FIBONACCI CONJECTURE ANSWER regardless choice raised proof CONVERGENT LIMITATION FIGHT

An Answer to the Problem Posed by H. Brezis: 《Chinese Science Bulletin》1993年第5期366-369,共4页王传芳薛儒英; Project supported by the Natural Science Foundation of Zhejiang Province.; Let ΩR^N(N≥4) be a bounded domain with smooth boundary Ω. In this note, we shall prove the existence of a nontrivial solution of the following semilinear elliptic equation with critical Sobolev exponent where a(x),...; 关键词：CRITICAL Soholev EXPONENT SEMILINEAR ELLIPTIC equation.

THE HIERARCHY AND GRZEGORCZYK'S PROBLEM OF MULTIPLE RECURSIVE FUNCTIONS: 《Chinese Science Bulletin》1992年第15期1319-1320,共2页郑锡忠钱磊; Project supported by the National Natural Science Foundation of China.; A. Grzegorczyk listed in [1] nine important open problems, of which the seventh has been answered positively by R. W. Ritchie. Now, we shall answer negatively the ninth; 关键词：ANSWER ITERATION Ritchie LISTED operations recursive negatively SCHEMA SUBSET positively

ON THE ALGEBRAIC MULTIPLICITY AND INDEX OF THE SPECTRAL RADIUS OF THE ITERATIVE MATRIX: 《Chinese Science Bulletin》1992年第14期1227-1228,共2页张谋成黎稳; A matrix A∈Rⁿⁿ is called an M-matrix if A = sI- B, where B≥0 and s≥ρ（B）, the spectral radius of B. By Γ（A） we denote the directed graph associated with a matrix A. The reflexive-transitive closure ...; 关键词：RADIUS DIAGONAL symbol CLOSURE ALGEBRAIC iterative MULTIPLICITY directed RADIUS ANSWER

A CLASS OF SPECIAL FINITE GROUPS: 《Chinese Science Bulletin》1992年第3期252-253,共2页施武杰杨成; We shall study such a finite group G with π_e(G)={1,p,q ,…. ,r,m }, where π_e(G)denotes the set of orders of elements in G andp, q, …, r are primes. We call the above groupthe EPMO-group. Theorem 1. Let G be a sol...; 关键词：SOLVABLE CLASS holds ORDERS nontrivial EXPONENT notes ANSWER 卜夕丹一

ON THE PROBLEM OF UNIQUENESS AND DETERMINATION OF ALGEBRAIC FUNCTIONS: 《Chinese Science Bulletin》1991年第11期960-961,共2页余军扬; Applying Nevanlinna’s theory, R. Nevanlinna obtained the unicity theorem of meromorphic functions, G. Valiron and He Yuzan obtained the unicity theorem of transcendental algebroid functions. But for non-transcendenta...; 关键词：ALGEBRAIC inefficient RATIONAL ANSWER essentially LETTER 代尹 uniquely elsewhere 二命

A NECESSARY AND SUFFICIENT CONDITION ON SHEVRIN 'S PROBLEMS: 《Chinese Science Bulletin》1991年第4期349-349,共1页龙冬阳; In [1], Shevrin posed two open problems on semigroups: (1) Is a semigroup every subsemigroup of which can be included in a finite ideal series nilpotent? (2) Is a semigroup whose proper subsemigroups all are nilpotent...; 关键词：NILPOTENT SEMIGROUP itself posed INTEGER nontrivial PERMUTATION ANSWER letter referred

ON THE SIMPLEX OF MAXIMUM WIDTH: 《Chinese Science Bulletin》1990年第21期1840-1840,共1页毛其吉; where τ (K, u)is the distance between the two parallel hyperplanes of support to K, which are perpendicular to the given unit vector u and contain K between them.In 1974, T. Salle proposed a problem: What is the simp...; 关键词：SIMPLEX Salle PERPENDICULAR ANSWER letter SINICA DEGENERATE holds EQUALITY body

A. N. PRIOR'S MODAL INTUITIONISTIC CALCULUS MIPC HAVING 13 MODALITIES: 《Chinese Science Bulletin》1990年第22期1930-1930,共1页高恒珊; It was A. N. Prior who introduced the system MIPC in his monograph Time and Modality in 1957, which is of type S5 in the sense of R. A. Bull, i. e. adding the law of excluded middle to it yields S5. Many different mod...; 关键词：excluded MODALITIES adding ANSWER

A NECESSARY AND SUFFICIENT CONDITION OF (BCP)_θ WEIGHTED SHIFTS: 《Chinese Science Bulletin》1990年第17期1490-1491,共2页吕方; Project supported by the National Natural Science Foundation of China.; Let H be a separable complex Hilbert space, and T an injective unilateral weighted shift with the weight sequence {w_n} on H. Now we define the inverse weight shift T₁ of T by T₁e_n...; 关键词：satisfying letter UNILATERAL inverse SEPARABLE invariant BCP ANSWER PROPOSITION WEIGHTS

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