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Variety (universal algebra)
代数三维建模
ISBN:9781568810232,出版年:1996,中图分类号:O15 被引 5次

Written for researchers and developers of three-dimensional modeling programs, this book examines the variety of existing systems while investigating the practical limitations of available software. From the table of contents: - Polyhedra - Boundary Models - A Small Language Modeler - The Algebraic Model - Computation of Algebraic Manifolds - Topological Specification of Forms and Shapes - The Modeling Principle - The GECO Language - Coefficients of a Projected Curve

2型模糊集的真值代数
ISBN:9781498735278,出版年:2016,中图分类号:O15 被引 11次

The Algebra of Truth Values Preliminaries Classical and fuzzy subsets The truth value algebra of type-2 fuzzy sets Simplifying the operations Examples Properties of the Type-2 Truth Value Algebra Preliminaries Basic observations Properties of the operations Two partial orderings Fragments of distributivity Subalgebras of the Type-2 Truth Value Algebra Preliminaries Type-1 fuzzy sets Interval-valued fuzzy sets Normal functions Convex functions Convex normal functions Endmaximal functions The algebra of sets Functions with finite support Automorphisms Preliminaries Sets, fuzzy sets, and interval-valued fuzzy sets Automorphisms of M with the pointwise operations Characterizing certain elements of M Automorphisms of M with the convolution operations Characteristic subalgebras of M T-Norms and T-Conorms Preliminaries Triangular norms and conorms T-norms and t-conorms on intervals Convolutions of t-norms and t-conorms Convolutions of continuous t-norms and t-conorms T-norms and t-conorms on L Convex Normal Functions Preliminaries Straightening the order Realizing L as an algebra of decreasing functions Completeness of L Convex normal upper semicontinuous functions Agreement convexly almost everywhere Metric and topological properties T-norms and t-conorms Varieties Related to M Preliminaries The variety V(M) Local finiteness A syntactic decision procedure The algebra E of sets in M Complex algebras of chains Varieties and complex algebras of chains The algebras 23 and 25 revisited Type-2 Fuzzy Sets and Bichains Preliminaries Birkhoff systems and bichains Varieties of Birkhoff systems Splitting bichains Toward an equational basis Categories of Fuzzy Relations Preliminaries Fuzzy relations Rule bases and fuzzy control Additional variables The type-2 setting Symmetric monoidal categories The Finite Case Preliminaries Finite type-2 algebras Subalgebras The partial orders determined by convolutions The double order Varieties related to mn The automorphism group of mn Convex normal functions The De Morgan algebras H(mn) Appendix: Properties of the Operations on M Bibliography Index Summary and Exercises appear at the end of each chapter.

ISBN:E100000035727,出版年:2011,中图分类号:I1

卡斯森·沃克不变量的全局外科公式。(AM-140),第140卷
ISBN:9780691021331,出版年:2014,中图分类号:O1

This book presents a new result in 3-dimensional topology. It is well known that any closed oriented 3-manifold can be obtained by surgery on a framed link in S 3. In Global Surgery Formula for the Casson-Walker Invariant, a function F of framed links in S 3 is described, and it is proven that F consistently defines an invariant, lamda (l), of closed oriented 3-manifolds. l is then expressed in terms of previously known invariants of 3-manifolds. For integral homology spheres, l is the invariant introduced by Casson in 1985, which allowed him to solve old and famous questions in 3-dimensional topology. l becomes simpler as the first Betti number increases. As an explicit function of Alexander polynomials and surgery coefficients of framed links, the function F extends in a natural way to framed links in rational homology spheres. It is proven that F describes the variation of l under any surgery starting from a rational homology sphere. Thus F yields a global surgery formula for the Casson invariant.

亨利的《苏玛》 二十五至二十七
ISBN:9789462702349,出版年:2020,中图分类号:I1

First critical edition of articles XXV–XXVII of the Summa (Quaestiones ordinariae) of Henry of Ghent Das Buch bietet die erste kritische Edition der Artikel XXV-XXVII der Summa (Quaestiones ordinariae)  des Heinrich von Gent. Dabei leistet es einen Beitrag zur Geschichte der Formen und Pfade der Ideenvermittlung im Mittelalter und zur mittelalterlichen Buchkultur. Die Kollationierung der Handschriften der Artikel XXV-XXVII und die Untersuchung ihrer materiellen Überlieferung haben der Editorin erlaubt, den Prozess der Ausarbeitung, Publikation und Verbreitung einer Portion von Heinrichs Summa über einen längeren Zeitraum in großer Detailgenauigkeit zu rekonstruieren. Die hier edierten Artikel enthalten ein Kernstück von Heinrichs theologischem und metaphysischem System. In der Behandlung von Einheit, Natur und Leben Gottes entfalten sie eine rationale Darstellung des ersten Prinzips. This book offers the first critical edition of articles XXV–XXVII of the Summa (Quaestiones ordinariae) of Henry of Ghent. At the same time, it contributes to our understanding of the forms and trajectories through which ideas were transmitted throughout the Middle Ages and to medieval book culture. Collating the manuscripts of articles XXV–XXVII and studying their material tradition allowed the editor to reconstruct in great detail how a portion of Henry’s Summa was prepared, published and disseminated over a considerable number of years. The primary text presents an authoritative overview of Henry's theological and metaphysical system. In dealing with the unity, nature, and life of God, it unfolds a rational explanation of the first principle.This publication is GPRC-labeled (Guaranteed Peer-Reviewed Content).

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