Results 11 to 20 of about 198,670 (323)

A note on sections of broken Lefschetz fibrations [PDF]

open access: yes, 2011
We show that there exists a non-trivial simplified broken Lefschetz fibration which has infinitely many homotopy classes of sections. We also construct a non-trivial simplified broken Lefschetz fibration which has a section with non-negative square.
Hayano, Kenta
core   +1 more source

On the moduli b-divisors of lc-trivial fibrations [PDF]

open access: yes, 2014
Roughly speaking, by using the semi-stable minimal model program, we prove that the moduli part of an lc-trivial fibration coincides with that of a klt-trivial fibration induced by adjunction after taking a suitable generically finite cover.
Fujino, Osamu, Gongyo, Yoshinori
core   +2 more sources

Higher Dimensional Elliptic Fibrations and Zariski Decompositions

open access: yes, 2021
We study the existence and properties of birationally equivalent models for elliptically fibered varieties. In particular these have either the structure of Mori fiber spaces or, assuming some standard conjectures, minimal models with a Zariski ...
Grassi, Antonella, Wen, David
core   +1 more source

Concrete Fibrations [PDF]

open access: yesNotre Dame Journal of Formal Logic, 2017
As far as we know no notion of concreteness for fibrations exists. We introduce such a notion and discuss some basic results about it.
openaire   +4 more sources

Die dimensions impact on fibrous plant protein formation during high moisture extrusion

open access: yesApplied Food Research, 2022
Plant-based meat analogues that mimic the structure and texture of meat are becoming very popular. They can be produced using high moisture extrusion (HSE). .
Valérie Guyony   +2 more
doaj   +1 more source

The Blaschke conjecture and great circle fibrations of spheres [PDF]

open access: yes, 2003
We construct an explicit diffeomorphism taking any fibration of a sphere by great circles into the Hopf fibration, using elementary geometry--indeed the diffeomorphism is a local (differential) invariant, algebraic in derivatives.Comment: 61 pages, 8 ...
Benjamin Mckay, Benjamin Mckay
core   +2 more sources

Double Fibrations

open access: yesTheory and Applications of Categories, 2022
This paper defines double fibrations (fibrations of double categories) and describes their key examples and properties. In particular, it shows how double fibrations relate to existing fibrational notions such as monoidal fibrations and discrete double fibrations, proves a representation theorem for double fibrations, and shows how double fibrations ...
Cruttwell, G. S. H.   +3 more
openaire   +3 more sources

A Fibration Application for Crossed Squares

open access: yesCumhuriyet Science Journal, 2018
In this work we showed that the category of crossed squares of algebrashas a left adjoint pair, and this category is fibred over the category ofcornered crossed modules.
Koray Yılmaz
doaj   +1 more source

Supersymmetry and the Hopf fibration

open access: yesApplied General Topology, 2012
The Serre spectral sequence of the Hopf fibration S15 S7→S8 is computed. It is used in a study of supersymmetry and actions based on this fibration.
Simon Davis
doaj   +1 more source

Investigation of NLO Properties of Pyridine Benzimidazole Derivatives: Ab-Initio Approach

open access: yesCumhuriyet Science Journal, 2018
Quantum chemical calculation analyses ofpyridine benzimidazole and their derivatives are done at HF/6-31+G(d) level ingas phase. Geometric parameters, IR spectrum, 1H- and 13C-NMRspectrum are calculated at HF/6-31+G(d) level in gas phase and examined ...
Ayhan Üngördü
doaj   +1 more source

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