Homology fibrations and the ?group-completion? theorem

1976 ◽  
Vol 31 (3) ◽  
pp. 279-284 ◽  
Author(s):  
D. McDuff ◽  
G. Segal
Keyword(s):  
Group Completion ◽  
Completion Theorem

scholarly journals A TWISTED HOMOLOGY FIBRATION CRITERION AND THE TWISTED GROUP-COMPLETION THEOREM

2014 ◽  
Vol 66 (1) ◽  
pp. 265-284 ◽  
Author(s):  
J. Miller ◽  
M. Palmer
Keyword(s):  
Group Completion ◽  
Twisted Group ◽  
Twisted Homology ◽  
Completion Theorem

Completions of ordered magmas

1980 ◽  
Vol 3 (1) ◽  
pp. 105-116
Author(s):  
Bruno Courcelle ◽  
Jean-Claude Raoult
Keyword(s):  
Programming Languages ◽  
Semantics Of Programming Languages ◽  
Ordered Algebras ◽  
Completion Theorem

We give a completion theorem for ordered magmas (i.e. ordered algebras with monotone operations) in a general form. Particular instances of this theorem are already known, and new results follow. The semantics of programming languages is the motivation of such investigations.

scholarly journals A Bound on Permutation Codes

10.37236/2929 ◽  
2013 ◽  
Vol 20 (3) ◽  
Author(s):  
Jürgen Bierbrauer ◽  
Klaus Metsch
Keyword(s):  
Projective Plane ◽  
Symmetric Group ◽  
Minimum Distance ◽  
Main Part ◽  
Latin Squares ◽  
Permutation Codes ◽  
Permutation Code ◽  
Mutually Orthogonal Latin Squares ◽  
Hamming Metric ◽  
Completion Theorem

Consider the symmetric group $S_n$ with the Hamming metric. A  permutation code on $n$ symbols is a subset $C\subseteq S_n.$ If $C$ has minimum distance $\geq n-1,$ then $\vert C\vert\leq n^2-n.$ Equality can be reached if and only if a projective plane of order $n$ exists. Call $C$ embeddable if it is contained in a permutation code of minimum distance $n-1$ and cardinality $n^2-n.$ Let $\delta =\delta (C)=n^2-n-\vert C\vert$ be the deficiency of the permutation code $C\subseteq S_n$ of minimum distance $\geq n-1.$We prove that $C$ is embeddable if either $\delta\leq 2$ or if $(\delta^2-1)(\delta +1)^2<27(n+2)/16.$ The main part of the proof is an adaptation of the method used to obtain the famous Bruck completion theorem for mutually orthogonal latin squares.

Small Group Completion of Formative Tasks Questionnaire

1990 ◽  
Author(s):  
Janice H. Schopler ◽  
Maeda J. Galinsky
Keyword(s):  
Small Group ◽  
Group Completion

Eqtheopogles A Completion Theorem Prover for PL1EQ

1989 ◽  
pp. 92-101
Author(s):  
Jörg Denzinger ◽  
Jürgen Müller
Keyword(s):  
Theorem Prover ◽  
Completion Theorem

HIGHER -THEORY OF FORMS I. FROM RINGS TO EXACT CATEGORIES

2019 ◽  
pp. 1-69 ◽  
Author(s):  
Marco Schlichting
Keyword(s):  
Form Parameter ◽  
Hermitian Forms ◽  
Group Completion ◽  
Theory Of Forms ◽  
Exact Sequences ◽  
Exact Categories

We prove the analog for the $K$ -theory of forms of the $Q=+$ theorem in algebraic $K$ -theory. That is, we show that the $K$ -theory of forms defined in terms of an $S_{\bullet }$ -construction is a group completion of the category of quadratic spaces for form categories in which all admissible exact sequences split. This applies for instance to quadratic and hermitian forms defined with respect to a form parameter.

Completions of Boolean algebras of projections and weak-star closures of C*-algebras on dual Banach spaces

2011 ◽  
Vol 54 (2) ◽  
pp. 515-529
Author(s):  
Philip G. Spain
Keyword(s):  
Banach Space ◽  
Banach Spaces ◽  
Boolean Algebras ◽  
C Algebra ◽  
C Algebras ◽  
Weak Star ◽  
Weakly Closed ◽  
Operator Closure ◽  
Dual Banach Space ◽  
Completion Theorem

AbstractPalmer has shown that those hermitians in the weak-star operator closure of a commutative C*-algebra represented on a dual Banach space X that are known to commute with the initial C*-algebra form the real part of a weakly closed C*-algebra on X. Relying on a result of Murphy, it is shown in this paper that this last proviso may be dropped, and that the weak-star closure is even a W*-algebra.When the dual Banach space X is separable, one can prove a similar result for C*-equivalent algebras, via a ‘separable patch’ completion theorem for Boolean algebras of projections on such spaces.

Ap-benzyne tom-benzyne conversion through a 1,2-shift of a phenyl group. Completion of the benzyne cascade

2004 ◽  
Vol 17 (9) ◽  
pp. 798-806 ◽  
Author(s):  
Alexei L. Polishchuk ◽  
Kevin L. Bartlett ◽  
Lee A. Friedman ◽  
Maitland Jones
Keyword(s):  
Phenyl Group ◽  
Group Completion

scholarly journals The Atiyah–Segal completion theorem in twisted K–theory

2012 ◽  
Vol 12 (4) ◽  
pp. 1925-1940 ◽  
Author(s):  
Anssi Lahtinen
Keyword(s):  
K Theory ◽  
Completion Theorem
Sign in / Sign up

Export Citation Format

Share Document