Results 11 to 20 of about 7,841 (218)

Minimizing the presentation of a kont group [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
A method for calculating the fundamental group of a knot is given. This method can be used to obtain group presentations with fewer generators and relators than other methods.
Mark J. Dugopolski
doaj   +2 more sources

On Cyclically Presented Groups of Positive Word Length Four Relators [PDF]

open access: yes, 2022
Substantial progress has been made into the Tits alternative for cyclically presented groups of positive word length four relators. A classif i cation theorem of the i niteness of the abelianisation of said groups is established.
Isherwood, Shaun
core   +3 more sources

On the Tits alternative for cyclically presented groups with length four positive relators [PDF]

open access: yes, 2022
We investigate the Tits alternative for cyclically presented groups with length four positive relators in terms of a system of congruences (A),(B),(C) in the defining parameters, introduced by Bogley and Parker.
Isherwood, Shaun   +3 more
core   +1 more source

Redundant relators in cyclic presentations of groups [PDF]

open access: yes, 2023
A cyclic presentation of a group is a presentation with an equal number of generators and relators that admits a particular cyclic symmetry. We characterise the orientable, non-orientable, and redundant cyclic presentations and obtain concise refinements
Williams, Gerald   +3 more
core   +1 more source

Social Relations and Relational Incentives [PDF]

open access: yesSSRN Electronic Journal, 2012
This paper studies how social relationships between managers and employees affect relational incentive contracts. To this end we develop a simple dynamic principal-agent model where both players may have feelings of altruism or spite toward each other. The contract may contain two types of incentives for the agent to work hard: a bonus and a threat of ...
Robert Dur, Jan Tichem
openaire   +4 more sources

Prefix monoids of groups and right units of special inverse monoids

open access: yesForum of Mathematics, Sigma, 2023
A prefix monoid is a finitely generated submonoid of a finitely presented group generated by the prefixes of its defining relators. Important results of Guba (1997), and of Ivanov, Margolis and Meakin (2001), show how the word problem for certain one ...
Igor Dolinka, Robert D. Gray
doaj   +1 more source

Relating Equivalence Relations to Equivalence Relations: A Relational Framing Model of Complex Human Functioning [PDF]

open access: yesThe Analysis of Verbal Behavior, 1997
The current study aimed to develop a behavior-analytic model of analogical reasoning. In Experiments 1 and 2 subjects (adults and children) were trained and tested for the formation of four, three-member equivalence relations using a delayed matching-to-sample procedure.
Barnes-Holmes, Dermot   +2 more
openaire   +2 more sources

miR‐29a‐3p promotes the regulatory role of eicosapentaenoic acid in the NLRP3 inflammasome and autophagy in microglial cells

open access: yesKaohsiung Journal of Medical Sciences, 2023
Eicosapentaenoic acid (EPA) has been reported to play an anti‐inflammatory and antioxidative stress role in a series of human diseases, including major depressive disorder. However, its exact mechanism is still largely unknown.
Jian‐Ping Pan   +7 more
doaj   +1 more source

Geometric presentations of classical knot groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
The question addressed by thls paper is, how close is the tunnel number of a knot to the minimum number of relators in a presentation of the knot group? A dubious, but useful conjecture, is that these two invariants are equal.
John Erbland, Mauricio Guterriez
doaj   +1 more source

Topological relations

open access: yesRevista Integración, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Angulo-Perkins, Emilio   +1 more
openaire   +4 more sources

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