Download e-book for kindle: A mathematical gift, 1, interplay between topology, by Kenji Ueno, Koji Shiga, Shigeyuki Morita

By Kenji Ueno, Koji Shiga, Shigeyuki Morita

ISBN-10: 0821832824

ISBN-13: 9780821832820

This booklet will deliver the sweetness and enjoyable of arithmetic to the school room. It bargains severe arithmetic in a full of life, reader-friendly kind. incorporated are routines and plenty of figures illustrating the most thoughts.

The first bankruptcy offers the geometry and topology of surfaces. between different themes, the authors speak about the Poincaré-Hopf theorem on severe issues of vector fields on surfaces and the Gauss-Bonnet theorem at the relation among curvature and topology (the Euler characteristic). the second one bankruptcy addresses numerous elements of the idea that of measurement, together with the Peano curve and the Poincaré technique. additionally addressed is the constitution of third-dimensional manifolds. specifically, it really is proved that the three-d sphere is the union of 2 doughnuts.

This is the 1st of 3 volumes originating from a sequence of lectures given via the authors at Kyoto collage (Japan).

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Additional info for A mathematical gift, 1, interplay between topology, functions, geometry, and algebra

Sample text

3 are assumed. The design domain is discretized into 160 × 40 four node plane stress elements. 1 Design domain of a long cantilever. 1. Without using a filter, the topologies obtained from these methods are quite different. In fact they are hardly comparable. It is difficult to tell which topology is the best unless the value of the final objective function is compared. ) It is observed that the continuation method produces the lowest mean compliance among all the optimization methods although it takes the largest number of iterations.

Convergent and mesh-independent solutions for bi-directional evolutionary structural optimization method. Finite Elements in Analysis and Design 43(14): 1039–49. S. (2002). Topology design of structures using a dual algorithm and a constraint on the perimeter. Inter. J. Num. Engng. 54: 1007–19. S. B. (1996). Stability of finite element models for distributed-parameter optimization and topology design. Comput. Meth. Appl. Mech. Engng. 130: 1951–65. P. M. (2001). A simple checkerboard suppression algorithm for evolutionary structural optimization.

The total number of iterations is 53. e. a larger tolerance τ is employed), the solution would have been considered convergent before a jump occurred at iteration 29. A slightly bigger tolerance τ would have had no significant effect on the value of the final mean compliance, but could have resulted in quite different a topology. 11(f)). 12. 12 Optimal topology of the beam using the SIMP method. 11(f). 26 Nmm which is also higher than that of the BESO topology. 7 Examples of BESO Starting from Initial Guess Design The above examples show that the BESO method can find the optimal topology by starting from the full design.

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A mathematical gift, 1, interplay between topology, functions, geometry, and algebra by Kenji Ueno, Koji Shiga, Shigeyuki Morita


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