Results 101 to 110 of about 10,716 (231)

The Intersection Problem for Latin Squares with Holes of Size 2 and 3 [PDF]

, 2009
In this dissertation we give complete solutions for the intersection problem of latin squares with holes of size 2 and 3. For a pair of 2n x 2n latin squares with holes of size 2 to have k entries in common outside of the holes k E {0, 1, 2,...., x ...
Baker, Charla
core  

A Quantised Push‐Sum Distributed Adaptive Momentum Algorithm for Optimisation Over Directed Networks

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT In this paper, we investigate a distributed constrained optimisation problem over directed networks. The agents in the networks conduct local computations and communications, endeavouring to collaboratively minimise the aggregation of all locally known convex cost functions subject to a global constraint set.
Qingguo Lü, Mingyu Guan, Chenglong He, Chen Chen, Xiangguang Dai, Man‐Fai Leung, Wei Zhang   +6 more
wiley   +1 more source

$3n+1$ problem: an heuristic lower bound for the number of integers connected to 1 and less than $x$

, 2020
This paper gives an heuristic lower bound for the number of integers connected to 1 and less than $x$, $θ(x) > 0.9x,$ in the context of the $3n+1$ problem.
openaire   +2 more sources

MIDAS: a methodological framework for high‐speed high‐energy diffraction microscopy data reduction. Part I: methodology

Acta Crystallographica Section A, EarlyView.
This paper details the complete methodological framework implemented in the MIDAS software for processing high‐energy diffraction microscopy (HEDM) data. We describe the specific algorithms, coordinate systems and physical models used for both far‐field and near‐field HEDM analysis.
Hemant Sharma, Jun-Sang Park, Peter Kenesei   +2 more
wiley   +1 more source

The planetary N-body problem: Symplectic foliation, reductions and invariant tori

, 2011
The 6n-dimensional phase space of the planetary (1 + n)-body problem (after the classical reduction of the total linear momentum) is shown to be foliated by symplectic leaves of dimension (6n − 2) invariant for the planetary Hamiltonian H.
Luigi Chierchia, Chierchia L., PINZARI G., Gabriella Pinzari, PINZARI, GABRIELLA, CHIERCHIA, Luigi   +5 more
core   +1 more source

From atoms to a data bank: optimizing transferability of electron‐density symmetry

Acta Crystallographica Section A, EarlyView.
This work focuses on the electron density of atoms modeled with a multipolar approach. We investigate how the refinement of the multipole models with/without symmetry constraints and optimization of the orientation of the local coordinate system and pseudosymmetry assignment improves the accuracy of electron‐density representations for atoms and atom ...
Paulina Maria Rybicka, Marta Kulik, Vladislav Ignat'ev, Paulina Maria Dominiak   +3 more
wiley   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source

Adaptive Sampling for BRDF Acquisition

Computer Graphics Forum, EarlyView.
We propose a data‐driven adaptive sampling strategy that predicts the optimal sampling pattern and count for BRDF acquisition from a single image, reducing capture time while preserving quality. Abstract The bidirectional reflectance distribution function (BRDF) describes the ratio of incoming radiance to outgoing radiance for all possible pairs of ...
Behnaz Kavoosighafi, Saghi Hajisharif, Jonas Unger, Ehsan Miandji   +3 more
wiley   +1 more source

The Syracuse Tree A Structural Approach to the 3n+ 1 problem

This work presents a constructive resolution of the Collatz Conjecture by developing a formal recursive and analytic framework called the Syracuse Tree. The Tree organizes all odd integers as "Buds" generated by affine transformations, structured by modular branching rules. A bijective function S(p, q) is introduced, which analytically encodes all odd
openaire   +2 more sources