Saul Kripke's lecture " Identity and Necessity " [1971] begins with a short discussion of a formal derivation of a law of necessity of identity. The derivation has become rather well known, but perhaps not so well understood. The present commentary attempts to improve understanding of it by enlarging on four remarks of Kripke's: 1 (A) This is an argument which has been stated many times in rece...

We construct the Wightman function for symmetric traceless tensors and Dirac fermions in dS$_{d+1}$ a coordinate index free formalism using $d+2$ dimensional ambient space. expand embedding space to cover spinor tensor fields any even or odd dimension. Our goal is furnish self-contained toolkit study of arbitrary spin de Sitter, with applications cosmological perturbation theory. The constructi...

Let R be a prime ring of char R = 2, d a nonzero derivation of R, ρ a nonzero right ideal of R and 0 = b ∈ R such that b[[d2[x, y], [x, y]]n = 0 for all x, y ∈ ρ, n ≥ 1 fixed integer. If [ρ, ρ]ρ = 0 then either bρ = 0 or d(ρ)ρ = 0. Mathematics Subject Classification: 16W25, 16R50, 16N60

3D rotation invariants based on orthogonal Gaussian–Hermite moments are proposed in this paper. We present an elegant and easy theoretical derivation of them. At the same time we prove by experiments that the Gaussian–Hermite invariants have better numerical stability than the traditional invariants composed of geometric moments. © 2014 Elsevier B.V. All rights reserved. d a w s i i d r [ t m i...

The current paper studied the concept of right n-derivation satisfying certified conditions on semigroup ideals near-rings and some related properties. Interesting results have been reached, most prominent which are following: Let M be a 3-prime left near-ring A_1,A_2,…,A_n nonzero M, if d is satisfies following conditions,d(u_1,u_2,…,(u_j,v_j ),…,u_n )=0 ∀ 〖 u〗_1 〖ϵA〗_1 ,u_2 〖ϵA〗_2,…,u_j,v_j ϵ...

we investigate the stability of generalizedderivations on banach algebras with a bounded central approximateidentity. we show that every approximate generalized derivation inthe sense of rassias, is an exact generalized derivation. also thestability problem of generalized derivations on the faithful banachalgebras is investigated.

This paper proposes a design methodology for the semi-automatic derivation of hardware dedicated to a generic class of image analysis reconstruction problems. The study will focus on the implications on the harware of the associated estimation algorithm and of the built-in underlying minimization. A speciic minimization strategy has been designed with a view to improving the eeciency of special...

Let us assume we are given an almost left-null line ΣA,d. It was Darboux who first asked whether manifolds can be described. We show that every canonically d-smooth manifold is uncountable and conditionally reversible. U. De Moivre’s derivation of sub-totally null, essentially sub-reversible ideals was a milestone in non-standard number theory. Therefore recently, there has been much interest i...

We generalize the worldsheet derivation of the topological open/closed string duality given in hep-th/0205297 to cases when there are different types of D branes on the open string side. We use the mirror Landau-Ginzburg description to clarify the correspondence between D branes on the open string side and C phases on the closed string side. We also discuss the duality from the point of view of...

This paper provides a complete physical picture of optical response time as a function of cell gap (d) in a wide voltage regime. Normally both rise and decay times are known to be proportional to d in the small angle approximation (Vth < V < ffiffiffi 2 p Vth), and in the high voltage regime where Vp < V < Vi the optical decay time is independent of d. In this paper, we found that between these...