Results 41 to 50 of about 41,135 (186)

UBVH: Unified Bounding Volume and Scene Geometry Representation for Ray Tracing

Computer Graphics Forum, EarlyView.
Abstract Bounding volume hierarchies (BVHs) are currently the most common data structure used to accelerate ray tracing. The existing BVH methods distinguish between the bounding volume representation associated with the interior BVH nodes and the scene geometry representation associated with leaf nodes.
M. Káčerik, J. Bittner
wiley   +1 more source

Heredity in fundamental left complemented algebras [PDF]

Surveys in Mathematics and its Applications, 2016
In the present paper, we introduce the notion of a fundamental complemented linear space, through continuous projections. This notion is hereditary. Relative to this, we prove that if a certain topological algebra is fundamental, then a concrete subspace
Marina Haralampidou, Konstantinos Tzironis   +1 more
doaj  

New Optimality Conditions for a Nondifferentiable Fractional Semipreinvex Programming Problem

Journal of Applied Mathematics, 2013
We study a nondifferentiable fractional programming problem as follows: (P)minx∈Kf(x)/g(x) subject to x∈K⊆X,  hi(x)≤0,  i=1,2,…,m, where K is a semiconnected subset in a locally convex topological vector space X, f:K→ℝ, g:K→ℝ+ and hi:K→ℝ, i=1,2,…, m. If
Yi-Chou Chen, Wei-Shih Du
doaj   +1 more source

Overview of (pro-)Lie group structures on Hopf algebra character groups

, 2017
Character groups of Hopf algebras appear in a variety of mathematical and physical contexts. To name just a few, they arise in non-commutative geometry, renormalisation of quantum field theory, and numerical analysis.
A Connes, A Murua, A Murua, A Murua, Andreas Kriegl, C Brouder, Dominique Manchon, E Hairer, Fernando Casas, G Bogfjellmo, G Bogfjellmo, H Alzaareer, H Glöckner, H Glöckner, H Glöckner, H Glöckner, H Yamabe, Hans Heinrich Keller, Helge Glöckner, Helge Glöckner, Helmut H. Schaefer, HZ Munthe-Kaas, HZ Munthe-Kaas, JC Butcher, JC Butcher, JW Milnor, K Ebrahimi-Fard, K Ebrahimi-Fard, K Ebrahimi-Fard, K Floret, K-H Neeb, Karl-Goswin Grosse-Erdmann, KH Hofmann, KH Hofmann, P Chartier, P Chartier, P Chartier, R Arens, R Dahmen, R Dahmen, Richard S. Hamilton, S Majid, W Bertram, Walter Michaelis, WD Suijlekom van, WD Suijlekom van, William C. Waterhouse, WS Gray   +47 more
core   +1 more source

Limit Orders and Knightian Uncertainty

International Economic Review, EarlyView.
ABSTRACT A wide variety of financial instruments allows risk‐averse traders to reduce their exposure to risk. This raises the question of what financial instruments allow ambiguity‐averse traders to reduce their exposure to ambiguity. We show in this paper that price‐contingent orders, such as limit orders, are sufficient: In a two‐period trading model,
Michael Greinecker, Christoph Kuzmics
wiley   +1 more source

Closed graph theorems for bornological spaces

, 2015
The aim of this paper is that of discussing Closed Graph Theorems for bornological vector spaces in a way which is accessible to non-experts. We will see how to easily adapt classical arguments of functional analysis over $\mathbb{R}$ and $\mathbb{C}$ to
Bambozzi, Federico
core   +1 more source

A remark on Ekeland's principle in locally convex topological vector spaces

Mathematical and Computer Modelling, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CAMMAROTO, Filippo, CHINNI', Antonia, STURIALE G.   +2 more
openaire   +2 more sources

Estimating National and Foreign Trade Elasticities Using Generalized Transport Costs

Journal of Regional Science, Volume 65, Issue 2, Page 471-496, March 2025.
ABSTRACT We introduce the definition of two distinct trade elasticities corresponding to imports from regions located in the same country (national elasticities) and foreign regions located in other countries (foreign elasticities). We resort to a three‐tier nested CES utility structure to derive the corresponding demand gravity equations.
José L. Zofío, Jorge Díaz‐Lanchas, Damiaan Persyn, Javier Barbero   +3 more
wiley   +1 more source

The role of vitamin D receptor signaling in hair follicle health and alopecia: Current understanding and therapeutic implications

Journal of Cell Communication and Signaling, Volume 20, Issue 1, March 2026.
The vitamin D receptor (VDR) regulates hair follicle biology through ligand‐dependent and ligand‐independent mechanisms by heterodimerizing with retinoid X receptor, recruiting coactivator complexes, and activating target genes including Wnt inhibitors, hair keratins, and cell cycle regulators.
Liancheng Guan, Fan Yang, Meijuan Li, Yujia Chen, Zexin Zhao, Hongxia Li, Deping Luo, Qian Li, Yunzhi Chen   +8 more
wiley   +1 more source

Bornological Locally Convex Cones

Le Matematiche, 2014
In this paper we define bornological and b-bornological cones and investigate their properties. We give some characterization for these cones. In the special case of locally convex topological vector space both these concepts reduce to the known concept 
Davood Ayaseh, Asghar Ranjbari
doaj