Twisted torus knots are with some full twists added along number of adjacent strands. There infinitely many known examples twisted which actually knots. We give eight more infinite families such a single negative twist.

objectives: it is important to recognize any risk factors for the development of injuries in the athletic population. the aim of this study was to investigate the association between joint hyper mobility and low back pain in iranian hyper mobile and non-hyper mobile athletes. methods: 50 athletic patients with low back pain (age=23.20±12.79 years) and 51 healthy athletes (age=24.28±13.70) from ...

Three recent articles in Nature: Physics, on plasma physics issues relevant to the ITER fusion power experiment*[see inset], have Australian connections. Although Australia does not yet have any formal involvement with what is claimed to be the world‟s largest truly international scientific experiment, this connection is not surprising in view of the long and distinguished history of Australian...

This paper studies the extension of the Hofer metric and general Finsler metrics on the Hamiltonian symplectomorphism group Ham(M,ω) to the identity component Symp0(M,ω) of the symplectomorphism group. In particular, we prove that the Hofer metric on Ham(M,ω) does not extend to a bi-invariant metric on Symp0(M,ω) for many symplectic manifolds. We also show that for the torus T2n with the standa...

Let M be a compact connected m-dimensional manifold. We denote by Diff(M) the space of all C1-diffeomorphisms from M to itself endowed with C1-topology. For a collection of diffeomorphisms L = {f1, . . . , fn} ⊂ Diff(M), the iterated function system (abbrivately IFS) G(M ; f1, . . . , fn) on M generated by L is given by iterates fi1o · · · ofik with ij ∈ {1, . . . , n}. Recall that an IFS G(M ;...