Results 11 to 20 of about 85 (81)

Infinitesimal Structure of Singularities [PDF]

open access: yesUniverse, 2017
Some important problems of general relativity, such as the quantisation of gravity or classical singularity problems, crucially depend on geometry on very small scales.
Michael Heller, Jerzy Król
doaj   +2 more sources

Aspectos internos y externos de lógica continua y lógica categórica para haces sobre cuantales [PDF]

open access: yes, 2023
In this text we explore and propose notions of sheaves over commutative, integral quantales, which are based on extensions of results of the theory of sheaves over locales: the interplay of sheaves as valued-sets and the analogy of sheaves as enriched ...
Reyes Gaona, David
core   +1 more source

A Convenient Category of Domains [PDF]

open access: yes, 2007
topological spaces, generalising the usual ω-continuous dcppos of domain theory. Our category supports all the standard constructions of domain theory, including the solution of recursive domain equations.
Ingo Battenfeld   +6 more
core   +1 more source

Introduction to categories and categorical logic

open access: yes, 2009
Working paper, submitted at Cornell University Library Archive on the 7th of February 2011. Available via http://arxiv.org/abs/1102.1313v196 pages96 pages96 pages96 pagesThe aim of these notes is to provide a succinct, accessible introduction to some of ...
Abramsky, S   +7 more
core   +1 more source

Geometrisation of first-order logic

open access: yes, 2015
That every first-order theory has a coherent conservative extension is regarded by some as obvious, even trivial, and by others as not at all obvious, but instead remarkable and valuable; the result is in any case neither sufficiently well-known nor ...
Dyckhoff R.   +3 more
core   +1 more source

Homo Nationalis and the Moralisation of Belonging: Rethinking National Identity in Austria

open access: yesNations and Nationalism, EarlyView.
ABSTRACT This article examines how national identity and belonging in contemporary Austria are articulated through moral rather than ideological vocabularies. Analysing presidential, party, media and social media discourse surrounding the 2025 National Day, it conceptualises the homo nationalis as the moral citizen who embodies the nation's virtues of ...
Markus Rheindorf
wiley   +1 more source

Weather Regime Diversity, Transitions, and Trends Using Hexagonal Self‐Organizing Maps

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Persistent atmospheric circulation patterns, or weather regimes, strongly modulate surface weather and extremes, yet their internal diversity, transitions, and trends remain less understood for North America. We apply a self‐organizing map (SOM) framework to represent North American weather regimes using daily 500‐hPa geopotential height ...
Luke Wichrowski   +2 more
wiley   +1 more source

Multiple cis‐regulatory elements collaborate to control mdka expression in telencephalic neural stem cells of adult zebrafish during constitutive and regenerative neurogenesis

open access: yesThe FEBS Journal, Volume 293, Issue 7, Page 1951-1969, April 2026.
midkine‐a (mdka), a pan‐injury response gene in vertebrates, is precisely regulated in the zebrafish telencephalon by a modular cis‐regulatory architecture. This control ensures proper expression during development, adult brain homeostasis, and regeneration.
Jincan Chen   +6 more
wiley   +1 more source

Categories without structures [PDF]

open access: yes, 2009
The popular view according to which Category theory provides a support for Mathematical Structuralism is erroneous. Category-theoretic foundations of mathematics require a different philosophy of mathematics.
Rodin, Andrei
core  

Topos logic and applications

open access: yes, 2019
A primeira noção de topos, a de topos de Grothendieck, surgiu há cerca de 50 anos a partir de uma generalização do conceito de feixe na geometria algébrica.
Cahali, Arthur Francisco Schwerz
core   +1 more source

Home - About - Disclaimer - Privacy