Results 31 to 40 of about 3,694,682 (291)

The Heat Transfer Problem in a Non-Convex Body—A New Procedure for Constructing Solutions

open access: yesAxioms, 2023
The subject of this work is the coupled steady-state conduction-radiation-convection heat transfer phenomenon in a non-convex blackbody, which is represented by a second-order partial differential equation (representing the heat conduction inside the ...
Rogério Martins Saldanha da Gama
doaj   +1 more source

Caenorhinus lobanovi, a new species of the tribe Deporaini (Coleoptera: Rhynchitidae) from Laos [PDF]

open access: yesКавказский энтомологический бюллетень, 2021
A new species, Caenorhinus (Flavodeporaus) lobanovi sp. n. from Central Laos is described and illustrated. This new species differs from Caenorhinus (Flavodeporaus) guskovae Legalov, 2021 from Laos in the unicoloured body (in C.
A.A. Legalov
doaj   +1 more source

Nested Convex Bodies are Chaseable [PDF]

open access: yesAlgorithmica, 2018
In the Convex Body Chasing problem, we are given an initial point $v_0$ in $R^d$ and an online sequence of $n$ convex bodies $F_1, ..., F_n$. When we receive $F_i$, we are required to move inside $F_i$. Our goal is to minimize the total distance travelled. This fundamental online problem was first studied by Friedman and Linial (DCG 1993).
Nikhil Bansal 0001   +4 more
openaire   +13 more sources

Order Types of Convex Bodies [PDF]

open access: yesOrder, 2010
We give new bounds on the Erdos-Szekeres theorems for convex bodies of Bisztriczky and Fejes Toth and of Pach and Toth. We derive them from a combinatorial characterization of convex position of a family of planar convex bodies. This characterization confirms that the concept of Order Type for points can be extended to noncrossing families of convex ...
Hubard, Alfredo   +3 more
openaire   +5 more sources

Floating and Illumination Bodies for Polytopes: Duality results

open access: yesDiscrete Analysis, 2019
Floating and illumination bodies for polytopes: duality results, Discrete Analysis 2019:11, 22 pp. A well-known concept in convex geometry is that of the _floating body_ of a convex body, which is defined as follows.
Elisabeth Werner, Olaf Mordhorst
doaj   +1 more source

Competitively Chasing Convex Bodies [PDF]

open access: yesSIAM Journal on Computing, 2019
Abstract. Let [Formula: see text] be a family of sets in some metric space. In the [Formula: see text]- chasing problem, an online algorithm observes a request sequence of sets in [Formula: see text] and responds (online) by giving a sequence of points in these sets.
Sébastien Bubeck   +3 more
openaire   +6 more sources

The Heart of a Convex Body [PDF]

open access: yes, 2013
15 pages, 3 figures. appears as "Geometric Properties for Parabolic and Elliptic PDE's", Springer INdAM Series Volume 2, 2013, pp 49 ...
Lorenzo Brasco, MAGNANINI, ROLANDO
openaire   +4 more sources

Shadows of Convex Bodies [PDF]

open access: yesTransactions of the American Mathematical Society, 1991
It is proved that if C C is a convex body in
openaire   +3 more sources

Inner Products for Convex Bodies

open access: yesJournal of Convex Analysis, 2021
We define a set inner product to be a function on pairs of convex bodies which is symmetric, Minkowski linear in each dimension, positive definite, and satisfies the natural analogue of the Cauchy-Schwartz inequality (which is not implied by the other conditions).
Bryant, David   +3 more
openaire   +3 more sources

Estimating the volume of a convex body [PDF]

open access: yes, 2018
Sometimes the volume of a convex body needs to be estimated, if we cannot calculate it analytically. We explain how statistics can be used not only to approximate the volume of the convex body, but also its ...
Baldin, Nicolai
core   +1 more source

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