Algebra of Vector Functions

Algebra of Vector Functions
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向量函数代数

DOI:
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发表时间:
1992
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通讯作者:
Y. Shidama
Y. Shidama
中科院分区:
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文献类型:
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作者:
Hiroshi Yamazaki;Y. Shidama

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本文中使用的术语和符号已在以下论文中介绍:[10],[5],[2],[3],[1],[12],[9],[4],[6],[11],[8]和[7]。为了简单起见,我们采用以下规则:X,Y表示集合,C表示非空集,c表示C的元素,V表示真实的赋范空间,f,f1,f2,f3表示从C到V的载体的部分函数,r,p表示真实的数。我们现在定义几个新的函子。让我们考虑C,V,f1,f2。函子f1 + f2产生一个从C到V的载体的部分函数,定义如下:(定义1)dom(f1+f2)= dom f1 ≠ dom f2,且对任何c使得c ∈ dom(f1 + f2)保持(f1 + f2)(c)= f1(c)+ f2(c)。函子f1 − f2产生一个从C到V的载体的部分函数,定义如下:(定义2)dom(f1−f2)= dom f1 <$dom f2且对任何c使得c ∈ dom(f1 − f2)成立(f1 − f2)(c)= f1(c)− f2(c)。让我们考虑C,让我们考虑V,让f1是从C到的部分函数,让我们考虑f2。函子f1 f2产生一个从C到V的载体的部分函数,定义为:(定义3)dom(f1 f2)= dom f1 ≠ dom f2,且对每一个c使得c ∈ dom(f1 f2)保持(f1 f2)(c)= f1(c)· f2(c)。让我们考虑C、V、f、r。函子r f产生一个从C到V的载体的部分函数,定义如下:(定义4)dom(r f)= dom f,且对任何c,使得c ∈ dom(r f)holds(r f)(c)= r · f(c).
The terminology and notation used in this paper have been introduced in the following papers: [10], [5], [2], [3], [1], [12], [9], [4], [6], [11], [8], and [7]. For simplicity we adopt the following rules: X, Y will denote sets, C will denote a non-empty set, c will denote an element of C, V will denote a real normed space, f , f1, f2, f3 will denote partial functions from C to the carrier of V , and r, p will denote real numbers. We now define several new functors. Let us consider C, V , f1, f2. The functor f1 + f2 yielding a partial function from C to the carrier of V is defined as follows: (Def.1) dom(f1+f2) = dom f1∩dom f2 and for every c such that c ∈ dom(f1+ f2) holds (f1 + f2)(c) = f1(c) + f2(c). The functor f1 − f2 yields a partial function from C to the carrier of V and is defined as follows: (Def.2) dom(f1−f2) = dom f1∩dom f2 and for every c such that c ∈ dom(f1− f2) holds (f1 − f2)(c) = f1(c)− f2(c). Let us consider C, and let us consider V , and let f1 be a partial function from C to , and let us consider f2. The functor f1 f2 yielding a partial function from C to the carrier of V is defined by: (Def.3) dom(f1 f2) = dom f1 ∩ dom f2 and for every c such that c ∈ dom(f1 f2) holds (f1 f2)(c) = f1(c) · f2(c). Let us consider C, V , f , r. The functor r f yielding a partial function from C to the carrier of V is defined as follows: (Def.4) dom(r f) = dom f and for every c such that c ∈ dom(r f) holds (r f)(c) = r · f(c).