in this research we work with the effective hamiltonian and the quark model. we investigate the decay rates of matter-antimatter of quark. we describe the effective hamiltonian theory and apply this theory to the calculation of current-current ( ), qcd penguin ( ), magnetic dipole ( ) and electroweak penguin ( ) decay rates. the gluonic penguin structure of hadronic decays is studied through th...

We refer to the preceding theorem as the Chen–Quimpo theorem throughout the paper. Are there other families of groups which admit analogues of the Chen–Quimpo theorem? A natural direction in which to look is towards groups that are, in some sense, ‘almost’ abelian. The dihedral groups have been investigated [2]. Another family of groups, and the subject of this paper, is the family of Hamiltoni...

Finite hamiltonian groups are counted. The sequence of numbers of all groups of order n all whose subgroups are normal and the sequence of numbers of all groups of order less or equal to n all whose subgroups are normal are presented.

a graph that contains a hamiltonian cycle is called a hamiltonian graph. in this paper wecompute the first and the second geometric – arithmetic indices of hamiltonian graphs. thenwe apply our results to obtain some bounds for fullerene.

Integrals of motion are constructed from noncommutative (NC ) Kepler dynamics, generating $$\mathrm{SO}(3)$$ , $$\mathrm{SO}(4)$$ and $$\mathrm{SO}(1,3)$$ dynamical symmetry groups. The Hamiltonian vector field is derived in action–angle coordinates, the existence a hierarchy bi-Hamiltonian structures highlighted. Then, family Nijenhuis recursion operators computed discussed.