Results 41 to 50 of about 687,146 (243)

Molecular insights on the conflicting generic boundaries in the Carduncellus‐Carthamus complex (Compositae)

open access: yesTAXON, Volume 71, Issue 6, Page 1268-1286, December 2022., 2022
Abstract The Carthamus‐Carduncellus complex is formed by approximately 50 taxa that are widely distributed throughout the Mediterranean basin and western Asia. The generic delineation of this complex has always been controversial. Currently, there are three widely diverging taxonomical proposals, suggesting that the complex is formed by (1) a single ...
Roser Vilatersana   +4 more
wiley   +1 more source

Goodwillie's calculus of functors and higher topos theory [PDF]

open access: yesJournal of Topology, 2018
We develop an approach to Goodwillie's calculus of functors using the techniques of higher topos theory. Central to our method is the introduction of the notion of fiberwise orthogonality, a strengthening of ordinary orthogonality which allows us to give a number of useful characterizations of the class of $n$-excisive maps.
Georg Biedermann   +4 more
openaire   +6 more sources

Towards a Paraconsistent Quantum Set Theory [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2015
In this paper, we will attempt to establish a connection between quantum set theory, as developed by Ozawa, Takeuti and Titani, and topos quantum theory, as developed by Isham, Butterfield and Döring, amongst others.
Benjamin Eva
doaj   +1 more source

Ennobling Love and Erotic Elevation: A Response to Six Readings of Ars Erotica

open access: yesEidos. A Journal for Philosophy of Culture, 2022
Preview: In various guises and cultures, the theme of elevating, ennobling love is a recurrent topos in the premodern erotic theory my book traces.
Richard Shusterman
doaj   +1 more source

The over-topos at a model [PDF]

open access: yesarXiv, 2021
With a model of a geometric theory in an arbitrary topos, we associate a site obtained by endowing a category of generalized elements of the model with a Grothendieck topology, which we call the antecedent topology. Then we show that the associated sheaf topos, which we call the over-topos at the given model, admits a canonical totally connected ...
arxiv  

Integrating plot‐based and remotely sensed data to map vegetation types in a New Zealand warm‐temperate rainforest

open access: yesApplied Vegetation Science, Volume 25, Issue 4, October/December 2022., 2022
We demonstrated a new workflow to extend and map a national classification into a new area. Three associations could be mapped using remotely sensed predictors alone (Sentinel and LiDAR), whereas two also required environmental predictors. Our map will guide the indigenous peoples of the area to manage threats to valued communities and their species ...
Susan K. Wiser   +5 more
wiley   +1 more source

Fuzzy Set Theory and Topos Theory [PDF]

open access: yesCanadian Mathematical Bulletin, 1986
AbstractThe relation between the categories of Fuzzy Sets and that of Sheaves is explored and the precise connection between them is explicated. In particular, it is shown that if the notion of fuzzy sets is further fuzzified by making equality (as well as membership) fuzzy, the resultant categories are indeed toposes.
openaire   +1 more source

On the validity of the definition of a complement-classifier

open access: yesZagadnienia Filozoficzne w Nauce, 2020
It is well-established that topos theory is inherently connected with intuitionistic logic. In recent times several works appeared concerning so-called complement-toposes (co-toposes), which are allegedly connected to the dual to intuitionistic logic. In
Mariusz Stopa
doaj  

The Topos of Virtuality

open access: yestripleC: Communication, Capitalism & Critique, 2009
Generalizing the conceptual approach to a theory of biosemiotics which is primarily based on insight from mathematical topology , we discuss here the relevance of the cognitive representation of the category of space in terms of the consequences implied ...
Rainer Zimmermann, Wolfgang Hofkirchner
doaj   +1 more source

Category-Theoretical and Topos-Theoretical Frameworks in Machine Learning: A Survey

open access: yesAxioms
In this survey, we provide an overview of category theory-derived machine learning from four mainstream perspectives: gradient-based learning, probability-based learning, invariance and equivalence-based learning, and topos-based learning.
Yiyang Jia   +3 more
doaj   +1 more source

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