In this paper, we prove that maximal (k, 2)-arcs in projective Hjelmslev planes over chain rings R of nilpotency index 2 exist if and only if charR = 4. © 2005 Elsevier Inc. All rights reserved.

intruduction: pattellofemoral pain syndrome (p.f.p.s) is the most common problem in knee joint. various authors have indicated that imbalance of muscle activity between vastus medialis oblique (vmo) and vastus lateralis (vl) might lead to p.f.p.s. the objective is to determine the effect of patellar taping on vmo/vl myoelectric activity ratio during maximal isometric contraction in open and clo...

‎Let $G$ be a finite group‎. ‎By $MT(G)=(m_1,cdots,m_k)$ we denote the type of‎ ‎conjugacy classes of maximal subgroups of $G$‎, ‎which implies that $G$ has exactly $k$ conjugacy classes of‎ ‎maximal subgroups and $m_1,ldots,m_k$ are the numbers of conjugates‎ ‎of maximal subgroups of $G$‎, ‎where $m_1leqcdotsleq m_k$‎. ‎In this paper‎, ‎we‎ ‎give some new characterizations of finite groups by ...

Lamperti's maximal branching process is revisited, with emphasis on the description of shape invariant measures in both recurrent and transient regimes. A truncated version this chain exhibited, preserving monotonicity original Lamperti supported by integers. The Brown theory hitting times applies to latter finite state-space, including sharp strong time stationarity. Additional information the...

The myosin heavy chain (MHC) and myosin light chain (MLC) isoforms in skeletal muscle of Rana pipiens have been well characterized. We measured the force-velocity (F-V) properties of single intact fast-twitch fibers from R. pipiens that contained MHC types 1 or 2 (MHC1 or MHC2) or coexpressed MHC1 and MHC2 isoforms. Velocities were measured between two surface markers that spanned most of the f...

We revisit unitary representation of centrally extended psu(2|2) excitation superalgebra. We find most generally that ‘pseudo-momentum’, not lattice momentum, diagonalizes spin chain Hamiltonian and leads to generalized dynamic spin chain. All known results point to lattice momentum diagonalization for N = 4 super Yang-Mills theory. Having different interacting structure, we ask if N = 6 superc...

For a fmite ordered set P, let c(P) denote the cardinality of the largest subset Q such that the induced suborder on Q satisfies the Jordan-Dedekind chain condition (JDCC), i.e., every maximal chain in Q has the same cardinality. For positive integers n, let be the minimum of c(P) over all ordered sets P of cardinahty n. We prove: &r 1 <f(n) < 4e AhfS (MOS) subject ckwiflcation (1980). 06AO5.

We discuss the rejection-free event-chain Monte-Carlo algorithm and several applications to dense soft matter systems. Event-chain is an alternative standard local Markov-chain schemes, which are based on detailed balance, for example well-known Metropolis-Hastings algorithm. a Markov chain scheme that uses so-called lifting moves achieve global balance without rejections (maximal balance). It ...