| 单词 | catastrophe theory |
| 释义 | > as lemmascatastrophe theory catastrophe theory n. Mathematics the topological description of systems which display abrupt discontinuous change. ΘΚΠ the world > relative properties > number > mathematics > [noun] > theories or branches of menadry1570 pure mathematics1605 mechanics1612 residuation1846 chaos theory1880 number theory1901 formalism1913 intuitionism1913 replacement theory1914 biomathematics1923 proof theory1929 finitism1935 mereology1938 combinatorics1941 cryptarithmetic1943 game theory1945 numerical analysis1946 queueing theory1951 constructivism1959 complexity1963 catastrophe theory1971 chaology1985 1969 R. Thom in Topology VIII. 319 It is not too difficult a task to find all possible singularities V(x) of finite codimension not exceeding four. These singularities are important, because they may appear on our space–time in a structurally stable way. They give rise to what we call the ‘elementary catastrophes’, when we interpret them as describing dynamical fields on our space–time.] 1971 Times Lit. Suppl. 10 Dec. 1557/3 Another interesting feature of catastrophe theory is called the divergence effect. 1973 Internat. Jrnl. Neurosci. 6 39/1 We can explicitly use catastrophe theory to explain and predict psychological phenomena. 1987 Brit. Jrnl. Sociol. 38 503 Catastrophe theory is itself said to be in a catastrophic state. 1992 S. P. Maran Astron. & Astrophysics Encycl. 294/1 Gravitational optics has an important connection with the branch of mathematics known as catastrophe theory. < as lemmas |
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