Results 41 to 50 of about 165,958,425 (294)

A–infinity algebras, strand algebras, and contact categories [PDF]

open access: yesAlgebraic & Geometric Topology, 2021
In previous work we showed that the contact category algebra of a quadrangulated surface is isomorphic to the homology of a strand algebra from bordered sutured Floer theory. Being isomorphic to the homology of a differential graded algebra, this contact category algebra has an A-infinity structure, allowing us to combine contact structures not just by
openaire   +3 more sources

Eilenberg–Moore Monoids and Backtracking Monad Transformers [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
We develop an algebraic underpinning of backtracking monad transformers in the general setting of monoidal categories. As our main technical device, we introduce Eilenberg–Moore monoids, which combine monoids with algebras for strong monads. We show that
Maciej Piróg
doaj   +1 more source

Directed Algebraic Topology, Categories and Higher Categories [PDF]

open access: yesApplied Categorical Structures, 2007
This paper is a survey of the author's exploration of the links between algebraic topology and computer science, more precisely with concurrency theory. This paper is based on the author's contribution at the conference ``Charles Ehresmann; 100 ans'', Amiens, 7-9 October 2005.
openaire   +1 more source

Derived categories of nodal algebras

open access: yesJournal of Algebra, 2004
In this article we classify indecomposable objects of the derived categories of finitely-generated modules over certain infinite-dimensional algebras. The considered class of algebras (which we call nodal algebras) contains such well-known algebras as the complete ring of a double nodal point $\kk[[x,y]]/(xy)$ and the completed path algebra of the ...
Drozd, Y., Burban, I.
openaire   +4 more sources

Aspects of algebraic Algebras [PDF]

open access: yesLogical Methods in Computer Science, 2017
In this paper we investigate important categories lying strictly between the Kleisli category and the Eilenberg-Moore category, for a Kock-Z\"oberlein monad on an order-enriched category. Firstly, we give a characterisation of free algebras in the spirit
Dirk Hofmann, Lurdes Sousa
doaj   +1 more source

Frobenius–Schur Indicator for Categories with Duality

open access: yesAxioms, 2012
We introduce the Frobenius–Schur indicator for categories with duality to give a category-theoretical understanding of various generalizations of the Frobenius–Schur theorem including that for semisimple quasi-Hopf algebras, weak Hopf C*-algebras and ...
Kenichi Shimizu
doaj   +1 more source

Partial algebras, meaning categories and algebraization

open access: yesTheoretical Computer Science, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +4 more sources

The homotopy categories of injective modules of derived discrete algebras [PDF]

open access: yes, 2013
Zhe H. The homotopy categories of injective modules of derived discrete algebras.
Zhe, Han
core  

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

ON AUTOMORPHISMS OF CATEGORIES OF UNIVERSAL ALGEBRAS

open access: yesInternational Journal of Algebra and Computation, 2007
Let [Formula: see text] be a variety of universal algebras. We suggest an approach for describing automorphisms of a category [Formula: see text] of free [Formula: see text]-algebras. In particular, this approach allows us to answer the question: is an automorphism of such a category inner?
Boris I. Plotkin, Grigori Zhitomirski
openaire   +4 more sources

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