浪费时间
发表于 2025-3-23 10:21:38
0940-4740 r differential system is a system of equations on a manifold defined by equating to zero a number of exterior differential forms. When all the forms are linear, it is called a pfaffian system. Our object is to study its integral manifolds, i. e. , submanifolds satisfying all the equations of the sys
独白
发表于 2025-3-23 13:55:23
Elements of Geometric Crystallography,mber of examples of characteristic varieties, discuss some of their elementary properties, and shall state a number of remarkable theorems concerning characteristic varieties of involutive differential systems. The proofs of most of the results rely on certain commutative algebra properties of involutive tableaux and will be given in Chapter VIII.
Ischemia
发表于 2025-3-23 20:14:41
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得意牛
发表于 2025-3-24 01:32:42
,Cartan-Kähler Theory, integral manifolds of appropriate exterior differential systems. Moreover, in differential geometry, particularly in the theory and applications of the moving frame and Cartan’s method of equivalence, the problems to be studied often appear naturally in the form of an exterior differential system a
lactic
发表于 2025-3-24 04:34:17
The Characteristic Variety,mportant a role in the theory of differential systems as that played by the usual characteristic variety in classical RD.E. theory. We shall give a number of examples of characteristic varieties, discuss some of their elementary properties, and shall state a number of remarkable theorems concerning
有抱负者
发表于 2025-3-24 07:43:22
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Charitable
发表于 2025-3-24 12:17:43
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Between
发表于 2025-3-24 16:05:13
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训诫
发表于 2025-3-24 22:25:33
Partial Differential Equations,n-linear, as it has been developed over the last twenty five years. Rather than giving complete proofs, we have preferred in general to present many examples illustrating the various methods used in the theory.
Offset
发表于 2025-3-25 00:50:29
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