Advanced PWR Core Calculation Based on Multi-group Nodal-transport Method in Three-dimensional Pin-by-Pin Geometry
نویسندگان
چکیده
منابع مشابه
Pin Structures on Low–dimensional Manifolds
Pin structures on vector bundles are the natural generalization of Spin structures to the case of nonoriented bundles. Spin(n) is the central Z/2Z extension (or double cover) of SO(n) and Pin−(n) and Pin(n) are two different central extensions of O(n), although they are topologically the same. The obstruction to putting a Spin structure on a bundle ξ (= R → E → B) is w2(ξ) H(B;Z/2Z); for Pin it...
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ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 2003
ISSN: 0022-3131,1881-1248
DOI: 10.1080/18811248.2003.9715369