Results 51 to 60 of about 267,591 (176)

Postulation of schemes of length at most 4 on surfaces

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 3, March 2026.
Abstract In this paper, we address the postulation problem of zero‐dimensional schemes of length at most 4 on a surface. We prove some general results and then we focus on the case of P2$\mathbb {P}^2$, P1×P1$\mathbb {P}^1\times \mathbb {P}^1$ and Hirzebruch surfaces. In particular, we prove that except for few well‐known exceptions, a general union of
Edoardo Ballico, Stefano Canino
wiley   +1 more source

A century of art dealing in New York. The rise of American art

open access: yesThe Economic History Review, Volume 79, Issue 1, Page 281-311, February 2026.
Abstract We study art trade in New York between 1870 and 1970, analysing returns on investment by the renowned Knoedler gallery to shed light on the evolution of the American art market. A generalist art gallery should allocate investments to equalize expected returns, with differences in effective returns depending on purchase prices, number of traded
Federico Etro, Elena Stepanova
wiley   +1 more source

Variation‐Matching Sensitivity‐Based Virtual Fields for Hyperelastic Material Model Calibration

open access: yesStrain, Volume 62, Issue 1, February 2026.
Sensitivity‐based virtual fields based on matching displacement and material parameter variations are well‐suited for hyperelastic material model calibration. ABSTRACT Accurate identification of nonlinear material parameters from three‐dimensional full‐field deformation data remains a challenge in experimental mechanics. The virtual fields method (VFM)
Denislav P. Nikolov   +2 more
wiley   +1 more source

What's the Difference Between a Colorimeter, a Colorimeter and a Colorimeter?

open access: yesColor Research &Application, Volume 51, Issue 1, January/February 2026.
The word colorimeter has been used to describe a number of instruments for a century and a half. Some instruments didn't measure color, per se, and others didn't measure in the sense the term is now used. Understanding the evolution of this word brings us to a better appreciation of the devices that measure color today.
John Seymour
wiley   +1 more source

Criminal Minded? : Mixtape DJs, The Piracy Paradox, and Lessons for the Recording Industry [PDF]

open access: yes, 2009
For at least the past three years, leading American fashion designers have lobbied for passage of copyright-like protection for the design aspects of their apparel creations.
Anderson, Horace E.
core   +1 more source

Osculating spaces to secant varieties

open access: yes, 2004
We generalize the classical Terracini's Lemma to higher order osculating spaces to secant varieties. As an application, we address with the so-called Horace method the case of the $d$-Veronese embedding of the projective 3 ...
Ballico, E.   +3 more
core   +1 more source

Properly Speaking, Sir Isaac Newton Was the First Perceptual Psychologist and, Therefore, the First Psychologist

open access: yesColor Research &Application, Volume 51, Issue 1, January/February 2026.
Newton’s insight that “the rays are not colored” anticipated a constructivist view of perception in which physical stimuli provide input but perceptual qualities arise from neural processing. Framed by Newton’s view, early sensory psychology and modern neuroscience converged on the conclusion that color is an internally generated percept, shaped by ...
Billy R. Wooten, Billy R. Hammond
wiley   +1 more source

Two books, some weed identification charts...

open access: yesÁlabe, 2011
En muchas de las encrucijadas de mi vida, ha sido un libro el que me ha enseñado el mejor camino; en algunas ocasiones varios libros han conspirado para ofrecerme un consejo imposible de rechazar.
Chris Stewart
doaj  

Can Quantum Key Distribution Be Secure [PDF]

open access: yes, 2014
The importance of quantum key distribution as a cryptographic method depends upon its purported strong security guarantee. The following gives reasons on why such strong security guarantee has not been validly established and why good QKD security is ...
Yuen, Horace P.
core  

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