Results 271 to 280 of about 319,594 (315)
Some of the next articles are maybe not open access.
The period of periodic Young modules
Archiv der Mathematik, 2012Let \(k\) be an algebraically closed field of characteristic \(p\). Young modules for the symmetric group \(S_r\) on \(r\) letters form an important class of indecomposable \(kS_r\)-modules, and in particular those Young modules which are periodic have been classified (in terms of their indexing partitions) by Hemmer and Nakano.
openaire +1 more source
ChemInform, 2005
Various cages are constructed by using three types of caps: f-cap (derived from spherical fullerenes by deleting zones of various size), kf-cap (obtainable by cutting off the polar ring, of size k), and t-cap ("tubercule"-cap). Building ways are presented, some of them being possible isomerization routes in the real chemistry of fullerenes.
Mircea V. Diudea +5 more
openaire +3 more sources
Various cages are constructed by using three types of caps: f-cap (derived from spherical fullerenes by deleting zones of various size), kf-cap (obtainable by cutting off the polar ring, of size k), and t-cap ("tubercule"-cap). Building ways are presented, some of them being possible isomerization routes in the real chemistry of fullerenes.
Mircea V. Diudea +5 more
openaire +3 more sources
Periodic Fever and Periodic Abdominalgia
Postgraduate Medicine, 1950(1950). Periodic Fever and Periodic Abdominalgia. Postgraduate Medicine: Vol. 8, No. 2, pp. 88-92.
openaire +2 more sources
Periodic Wavelet Transforms and Periodicity Detection
SIAM Journal on Applied Mathematics, 2002A nonnormalized continuous generalized Haar wavelet transform is introduced. Time-scale periodicity of such transform on a periodic signal is shown. Complete classification of all wavelets possessing the above preservation of the periodicity is given in terms of Fourier images.
Götz E. Pfander, John J. Benedetto
openaire +2 more sources
Algorithmica, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oded Lachish, Ilan Newman
openaire +2 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oded Lachish, Ilan Newman
openaire +2 more sources
On Periodic Solutions of the Periodic
Results in Mathematics, 1988By treating the periodic Riccati equation $${\rm\dot{z}=a(t)z^2+b(t)z+c(t)}$$ as a dynamical system on the sphere S, the number and stability of its periodic solutions are determined. Using properties of Moebius transformations, an exact algebraic relation is obtained between any periodic solution and any complex-valued periodic solution.
K. Y. Guan, J. Gunson, H. S. Hassan
openaire +1 more source
On the periods of a periodic function
International Journal of Mathematical Education in Science and Technology, 2005It is known that any nonconstant real-valued periodic function defined on the set of all real numbers is either discontinuous at each point of its domain or has a least positive period. Using the additive semigroup consisting of non-negative periods, we generalize this result by giving a unified proof of the same conclusion when the domain of the given
openaire +1 more source
Periodic-like words, periodicity, and boxes
Acta Informatica, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CARPI, Arturo, de Luca A.
openaire +3 more sources
On the Periods of Periodic Motions in Autonomous Systems
Ukrainian Mathematical Journal, 2001Here, the author establishes lower bounds on the periods of periodic solutions to the autonomous system \(\dot x=f(x)\) determined in a partially ordered Banach space \( \langle X,\|\cdot\|,\preceq\rangle\). It is assumed that the mapping \(f:X\mapsto X\) satisfies the condition \({\mathbf m}(f(x_1)-f(x_2))\preceq_E L{\mathbf m}(x_1-x_2)\) for all ...
openaire +1 more source