higher geometry
2.Discussed in this paper are some problems concerning the congruence in number theory, homomorphi in abstract algebra and the transformation group theory in higher geometry A mathematical method RPE,which generalizes RMI,resulted from relationship,poly-mapping and equivalence partition is introduced.
5.Simultaneously, particle geometry was optimized through heating. RSPB showed comparative mechanical properties as expected. Density and resin level were demonstrated to be the two most influential factors deciding the mechanical properties of RSPB. With 3 to 5% MDI, RSPB denser than 0.75g/cm~3 had MOEs and MORs higher than the ANSI-specified minimum values.
6.The simplified spherical harmonics(SPN) method is utilized to discrete the angular variables of Self-Adjoint Angular Flux(SAAF) neutron transport equation as spherical harmonics method has the dis-advantage of large amount of calculation. To solve the unstructured geometry problem,the spatial variables of ics(PN) method,and can save more time when dealing with problems with higher dimension,larger amount of meshes,and larger expanding order N.
