【AMS MathSciNet 助力科研 第二期】——深入了解MSC分类体系
全部内容详见点击右侧链接下载：http://www.libstage.com/msnforyou-2/msnforu-2-pic
MSC的全称是 Mathematics Subject Classication ，是美国数学会(American Mathematical Society，AMS)编制的针对数学文献的分类法。AMS MathSciNet 及Zbl MATH都采用MSC分类体系。
MSC分类法根据数学学科的发展每隔10年左右作一次修订，现存的版本有1980年版、1991年版、2000年版、2010年版，最新的版本是2010年版。MSC分类法修订工作是在AMS的协助下，由MR和Zbl MATH的编辑们完成的。目前MSC2020版正在修订阶段，如果您对MSC的分类体系需反馈，可访问msc2020.org提交反馈意见，该网站也可以查看同行提交的反馈信息。
MSC的分类号由五位字符构成，前两位为数字（一级分类），第三位是字母或”—”（二级分类），后两位为数字（三级分类），MSC基本涵盖了与数学有交叉的物理、化学、生物、计算机及其他自然科学、社会科学等各个方向。
为方便读者使用MSC分类，AMS免费提供MSC在线版，读者可以浏览、检索全部MSC分类体系。在MathSciNet首页（www.ams.org/mathscinet）点击右上角的免费工具箱/freetools即可进入MSC在线版：
如何检索MSC在线版？
以通信领域中的循环码（Cyclic codes）为例，MSC在线版支持模糊匹配，为提高检全率，采用” Cyc* code* “作为检索词，检索结果如下：
Cyclic codes的分类号为94B15，在分类号的后面有年份起止时间（1980-now），1980为该分类号的生效时间，now表示该分类号现在还在有效期。
点击94B，可查看Cyclic codes 的同级分类（三级分类）：
点击94，可查看Information and communication, circuits的同级分类（二级分类）：
点击页面右上方的免费工具箱/freetools 可查看全部一级分类
详细的分类表介绍见下表
|
一级分类 |
一级分类名称 |
备注 |
|
00 |
General |
|
|
01 |
History and biography |
|
|
02 |
Logic and foundations |
2010版已停用 |
|
03 |
Mathematical logic and foundations |
|
|
04 |
Set theory |
2010版已停用 |
|
05 |
Combinatorics |
|
|
06 |
Order,lattices,ordered algebraic structures |
|
|
08 |
General algebraic systems |
|
|
09 |
Classical algebra |
2010版已停用 |
|
10 |
Number Theory |
2010版已停用 |
|
11 |
Number theory |
|
|
12 |
Field theory and polynomials |
|
|
13 |
Commutative rings and algebras |
|
|
14 |
Algebraic geometry |
|
|
15 |
Linear and multilinear algebra,matrix theory |
|
|
16 |
Associative rings and algebras |
|
|
17 |
Nonassociative rings and algebras |
|
|
18 |
Category theory,homological algebra |
|
|
19 |
K-theory |
|
|
20 |
Group theory and generalizations |
|
|
21 |
Topological algebraic structures |
2010版已停用 |
|
22 |
Topological groups,Lie groups |
|
|
26 |
Real functions |
|
|
27 |
Analysis |
2010版已停用 |
|
28 |
Measure and integration |
|
|
30 |
Functions of a complex variable |
|
|
31 |
Potential theory |
|
|
32 |
Several complex variables and analytic spaces |
|
|
33 |
Special Functions |
|
|
34 |
Ordinary differential equations |
|
|
35 |
Partial differential equations |
|
|
36 |
Differential equations,operational calculus |
|
|
37 |
Dynamical systems and ergodic theory |
|
|
39 |
Finite differences and functional equations |
|
|
40 |
Sequences,series,summability |
|
|
41 |
Approximations and expansions |
|
|
42 |
Fourier analysis |
|
|
43 |
Abstract harmonic analysis |
|
|
44 |
Integral transforms,operational calculus |
|
|
45 |
Integral equations |
|
|
46 |
Functional analysis |
|
|
47 |
Operator theory |
|
|
48 |
Geometry |
2010版已停用 |
|
49 |
Calculus of variations and optimal control |
|
|
50 |
Geometry |
2010版已停用 |
|
51 |
Geometry |
|
|
52 |
Convex and discrete geometry |
|
|
53 |
Differential geometry |
|
|
54 |
General topology |
|
|
55 |
Algebraic topology |
|
|
56 |
Topology |
2010版已停用 |
|
57 |
Manifolds and cell complexes |
|
|
58 |
Global analysis,analysis on manifolds |
|
|
60 |
Probability theory and stochastic processes |
|
|
62 |
Statistics |
|
|
65 |
Numerical analysis |
|
|
68 |
Computer science |
|
|
69 |
General applied mathematics |
2010版已停用 |
|
70 |
Mechanics of particles and systems |
|
|
71 |
Mechanics |
2010版已停用 |
|
73 |
Mechanics of solids |
2010版已停用 |
|
74 |
Mechanics of deformable solids |
|
|
76 |
Fluid mechanics |
|
|
78 |
Optics,electromagnetic theory |
|
|
79 |
Mathematical physics,physical applications |
|
|
80 |
Classical thermodynamics,heat transfer |
|
|
81 |
Quantum theory |
|
|
82 |
Statistical mechanics,structure of matter |
|
|
83 |
Relativity and gravitational theory |
|
|
84 |
Relativity,astronomy |
2010版已停用 |
|
85 |
Astronomy and astrophysics |
|
|
86 |
Geophysics |
|
|
90 |
Operations research,mathematical programming |
|
|
91 |
Game theory,economics,social and behavioral sciences |
|
|
92 |
Biology and other natural sciences,behavioral sciences |
|
|
93 |
Systems theory,control |
|
|
94 |
Information and communication,circuits |
|
|
97 |
Mathematics education |