Results 51 to 60 of about 115,369,690 (213)
Equiresidual algebraic geometry I: The affine theory [PDF]
, 2022 In this first work dedicated to the generalisation of classic algebraic geometry to non algebraically closed fields and axiomatisable classes of fields, we develop the foundations for equiresidual algebraic geometry (EQAG), i.e.
Barbet, Jean
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International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Vibration isolation has long been a critical area of research, with the design of isolators based on the mechanical properties of Euler buckling beams representing one of the primary approaches. Traditionally, the focus has been on utilizing the negative stiffness characteristics of a post‐buckled Euler beam in parallel with positive stiffness
Yichang Feng +3 more
wiley +1 more source
Algebraic geometry proceedings of Bilkent Summer School
, 1997 This timely resource - based on the Summer School on Algebraic Geometry held recently at Bilkent University, Ankara, Turkey - surveys and applies fundamental ideas and techniques in the theory of curves, surfaces, and threefolds to a wide variety of ...
Algebraic Geometry Summer School 1995 Ankara +1 more
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The geometry of independence tree models with hidden variables [PDF]
, 2010 In this paper we investigate the geometry of undirected discrete graphical models of trees when all the variables in the system are binary, where leaves represent the observable variables and where the inner nodes are unobserved.
Zwiernik, Piotr, Smith, J. Q.
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Neuroprotection, EarlyView.Based on GBD 2021, the study analyzed the temporal trends of ischemic stroke (IS) burden in China from 1990 to 2021 and forecasted incidence and mortality through 2050. The absolute burden of IS in China will continue to rise by 2050, driven mainly by population aging, with faster age‐standardized incidence rate growth in females than males.
Yijun Zhang +5 more
wiley +1 more source
Coverage‐based rarefaction fails to quantify relative species richness
Oikos, EarlyView.Coverage‐based rarefaction (CBR) is a high‐profile tool for assessing biodiversity that provides relative species richness estimates by leveraging the Good‐Turing index u to interpolate. In contrast to alternatives such as the Shannon and Simpson indices, CBR's main appeal is providing values in units of species. CBR is tested against a series of other
John Alroy
wiley +1 more source
Topics in orbifold geometry and Gorenstein homogeneous spaces [PDF]
I study two problems from different domains. The first problem is related to orbifold geometry and the second to Gorenstein homogeneous spaces. Though two different topics, they share a common theme: the Gorenstein property.
Hayat, Umar, (Researcher in mathematics)
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Equivariant Riemann-Roch theorems for curves over perfect fields
, 2008 We prove an equivariant Riemann-Roch formula for divisors on algebraic curves over perfect fields. By reduction to the known case of curves over algebraically closed fields, we first show a preliminary formula with coefficients in Q.
Koeck, Bernhard +3 more
core +1 more source
Supervised Protein Structure Classification Using Topological Persistence With DeltaFold
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Recent advances in protein structure prediction have considerably increased the number of available structures, underscoring the need for scalable and accurate methods to compare and classify this huge amount of data. Current approaches based on sequence alignment or structural superposition often lack sensitivity and/or are computationally ...
Joseph Nardin‐Gennequin +3 more
wiley +1 more source
New views of some invariants associated with the Cartesian 2D velocity gradient tensor
Quarterly Journal of the Royal Meteorological Society, EarlyView.Vorticity and divergence of horizontal flow are fundamental quantities in meteorology; both are linear functions of the four elements of the 2D velocity gradient tensor and both are formally unchanged under coordinate rotation. We explore four quadratic functions of the elements that are geometrically invariant in this sense, finding some novel ...
I. Roulstone, S. A. Clough, A. A. White
wiley +1 more source