A ZME-matrix is a matrix A all of whose positive integer powers are Z-matrices, and whose odd powers are irreducible. We find a combinatorial partial order on the spectral idempotents of a ZME-matrix A which determines the allowable spectral perturbations B for which B is again a ZME-matrix. We apply this result to show that under certain restrictions, the product of two ZME-matrices is a ZME-m...

Bantu languages generally have a noun-initial DP word order but they typically allow for demonstratives, and in some also the quantifier meaning ‘each, every’, to precede noun. Beyond this, changing relative of post-nominal modifiers which leads subtle (focus-related) changes not adjectives, numerals possessives appear before In this paper, we discuss alternations that are allowable Xitsonga th...

Simulation and analysis of a turbulent free jet flame erupting into still air are done using computational fluid dynamics (CFD). Using 2D axisymmetric numerical modeling in ANSYS-Fluent 14.5. Three distinct kinds gaseous fuels used: methane, carbon monoxide, Biogas (50 % CH4 50 CO2). The effects thermal radiation utilizing the P-1 model on behavior investigated, impacts temperature fuel velocit...

Unreinforced masonry is that in which the tensile strength of the masonry is taken into consideration in design. Allowable out-of-plane tensile stress values are a function of the mortar type, such as Portland cement/lime mortar vs. masonry cement mortar or type M or S mortar vs. type N mortar. The allowable tensile stress is also a function of the masonry construction, such as tension parallel...

Due to its simplicity and accuracy, quadratic peak interpolation in a zero-padded Fast Fourier Transform (FFT) has been widely used for sinusoidal parameter estimation in audio applications. While general criteria can guide the choice of window type, FFT length, and zero-padding factor, it is sometimes desirable in practice to know more precisely the requirements for achieving a prescribed erro...

Order types are a well known abstraction of combinatorial properties of a point set. By Mnëv’s universality theorem for each semi-algebraic set V there is an order type with a realization space that is stably equivalent to V . We consider realization spaces of allowable sequences, a refinement of order types. We show that the realization spaces of allowable sequences are universal and consequen...

The identiication of the needed redexes in a term is an undecidable problem. We introduce a (partially decidable) type assignment system, which distinguishes certain redexes called the allowable redexes. For a well-typed term e, allowable redexes are needed redexes. In addition, with principal typing, all the needed redexes of a normalisable term are allowable. Using these results, we can ident...

In this paper, we propose a new interpretation of local limit theorems for univariate and multivariate distributions on lattices. Using elementary techniques, show that – given theorem in the standard sense are approximated well by distribution, uniformly intervals possibly decaying length. We identify maximally allowable decay speed interval lengths. Further, continuous distributions, type law...