Results 21 to 30 of about 637,299 (342)

The Hilbert stack [PDF]

open access: yesAdvances in Mathematics, 2014
Let : X -> S be a morphism of algebraic stacks that is locally of finite presentation with affine stabilizers. We prove that there is an algebraic S-stack, the Hilbert stack, parameterizing proper algebraic stacks mapping quasi-finitely to X. This was previously unknown, even for a morphism of schemes.
Hall, Jack, Rydh, David
openaire   +3 more sources

Early Risk Prediction of Diabetes Based on GA-Stacking

open access: yesApplied Sciences, 2022
Early risk prediction of diabetes could help doctors and patients to pay attention to the disease and intervene as soon as possible, which can effectively reduce the risk of complications.
Yaqi Tan   +4 more
doaj   +1 more source

Mapping stacks of topological stacks [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 2010
We prove that the mapping stack Map(Y,X) of topological stacks X and Y is again a topological stack if Y admits a compact groupoid presentation. If Y admits a locally compact groupoid presentation, we show that Map(Y,X) is a paratopological stack. In particular, it has a classifying space (hence, a natural weak homotopy type).
openaire   +3 more sources

Class 1 deverbal and non-deverbal nouns in Shona: A comparative analysis

open access: yesStellenbosch Papers in Linguistics Plus, 2014
The main aim of this article is to present a comparative analysis of some synchronic morphological properties of Shona class 1 non-deverbal and deverbal nouns.
Mudzingwa, Calisto, Kadenge, Maxwell
doaj   +1 more source

A Polarization Stacking Method for Optimizing Time-Series Interferometric Phases of Distributed Scatterers

open access: yesRemote Sensing, 2022
For time-series interferometric phases optimization of distributed scatterers (DSs), the SqueeSAR technology used the phase linking (PL) to extract the equivalent single-master (ESM) interferometric phases from the multilooking time-series coherence ...
Peng Shen, Changcheng Wang, Jun Hu
doaj   +1 more source

Stacks [PDF]

open access: yes, 2021
We explore several different facets of the notion of stack, and how they relate to the applications of stacks in geometry.
Mestrano, Nicole, Simpson, Carlos
openaire   +2 more sources

A Novel Prediction Model for Malicious Users Detection and Spectrum Sensing Based on Stacking and Deep Learning

open access: yesSensors, 2022
Cooperative network is a promising concept for achieving a high-accuracy decision of spectrum sensing in cognitive radio networks. It enables a collaborative exchange of the sensing measurements among the network users to monitor the primary spectrum ...
Salma Benazzouza   +3 more
doaj   +1 more source

Stratifying Quotient Stacks and Moduli Stacks [PDF]

open access: yes, 2018
Recent results in geometric invariant theory (GIT) for non-reductive linear algebraic group actions allow us to stratify quotient stacks of the form [X/H], where X is a projective scheme and H is a linear algebraic group with internally graded unipotent radical acting linearly on X, in such a way that each stratum [S/H] has a geometric quotient S/H ...
Berczi, G, Hoskins, V, Kirwan, F
openaire   +4 more sources

New Insights Into the Golgi Stacking Proteins

open access: yesFrontiers in Cell and Developmental Biology, 2019
The Golgi stacking proteins, GRASP55 and GRASP65, are best known for their roles in Golgi structure formation. These peripheral Golgi proteins form trans-oligomers that hold the flat cisternal membranes into stacks.
Erpan Ahat   +3 more
doaj   +1 more source

Estimation of Potato Chlorophyll Content from UAV Multispectral Images with Stacking Ensemble Algorithm

open access: yesAgronomy, 2022
Rapid and accurate crop chlorophyll content estimation is crucial for guiding field management and improving crop yields. This study explored the potential for potato chlorophyll content estimation based on unmanned aerial vehicle (UAV) multispectral ...
Huanbo Yang   +6 more
doaj   +1 more source

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