The universal curve π : C → M over the moduli space M of stable r-spin maps to a target Kähler manifold X carries a universal spinor bundle L → C . Therefore the moduli space M itself carries a natural K-theory class Rπ∗L. We introduce a twisted r-spin Gromov–Witten potential of X enriched with Chern characters of Rπ∗L. We show that the twisted potential can be reconstructed from the ordinary r...

It has been well established that the f -mode of relativistic ordinary-fluid neutron stars displays a universal scaling behavior. Here we study whether the “ordinary” foand “superfluid” fs-modes of superfluid neutron stars also show similar universal behavior. We first consider a simple case where the neutron superfluid and normal fluid are decoupled, and with each fluid modeled by a polytropic...

The non-commutative tori provide probably the most accessible interesting examples of non-commutative differentiable manifolds. We can identify an ordinary n-torus rn with its algebra, C(rn), of continuous complex-valued functions under pointwise multiplication. But C(rn) is the universal C*-algebra generated by n commuting unitary operators. By definition, [15, 16, 50], a non-commutative n-tor...

the aim of this study was to determine the best interpolation method to achieve spatial and quality distribution of springs from point view (tds) and ph in mirdeh watershed nw kurdistan province. field sampling collections was done and 268 springs of total 904 springs of whole watershed selected randomly. electrical conductivity and ph of springs was determined and 168 springs was used as train...

‎second derivative general linear methods (sglms) as an extension‎ ‎of general linear methods (glms) have been introduced to improve‎ ‎the stability and accuracy properties of glms‎. ‎the coefficients of‎ ‎sglms are given by six matrices‎, ‎instead of four matrices for‎ ‎glms‎, ‎which are obtained by solving nonlinear systems of order and‎ ‎usually runge--kutta stability conditions‎. ‎in this p...

For primes p>3 we produce a new derivation of the universal p-adic sigma function and Weierstrass zeta functions Mazur Tate for elliptic curves with good ordinary or multiplicative reduction by method that highlights congruences among coefficients in Laurent expansions functions, works simultaneously generalized defined equations.

jonathan dancy advocates a radical particularist theory of ethics. arguing against a variety of generalist doctrines, he maintains that there are no moral principles and that our ethical decisions are highly context-dependent: they are made case by case, without the support of such principles. in this paper, drawing on a number of theoretical concepts used in science as well as the philosophy o...

Abstract Taking account of the time-delayed phenomenon in diffusion of new products, we propose the timedelayed Verhulst model and then establish grey time-delayed Verhulst model using the method of greying differential equations. The related parameter packets of the novel model is obtained under the rule of OLS. The results show that traditional grey Verhulst model is a special example of grey...

In this paper we examine the influence of foreign direct investment inflows on energy intensities of developing countries empirically. We first show that a simple OLS estimation, as it is found in the literature, suggests energy intensity reductions from FDI inflows, which is consistent with the hypothesis of energy saving technology transfer via FDI. However, such a regression turns out to be ...