0

DEAR EDITOR Plastic surgeons are surgical artists and innovators who constantly strive for innovative solutions to the ever challenging management of both congenital and acquired defects and deformities.1-3 Historically reconstructive ladder was described as the standard algorithmic approach to choose the most appropriate solution in this regard. The emphasis was on adopting a logical approach ...

The projective full embeddings of partial geometries are known. So are the projective full embeddings of semipartial and dual semipartial geometries in case of a > 1. If a 1⁄4 1, a semipartial geometry is known as a partial quadrangle. No projective full embedding of a proper partial quadrangle is known. However besides a unique example for q 1⁄4 2, there is one example known of a dual partial ...

We look at the four-fold symmetry given by the Incenter quadrangle of a triangle, and the relation with the cirumcircle, which in this case is the nine-point conic of the quadrangle. By investigating Euler lines of Incenter triangles, we show that the classical Schiffler point extends to a set of four Schiffler points, all of which lie on the Euler line. We discover also an additional quadrangl...

The globally widespread kind of description of vowels by points in the IPA quadrangle with the cardinal vowels as references is very often not trustworthy in its detailed specification. The reasonable interpretation of a dot registration is namely that the vowel quality is very narrowly pinpointed. However, most phoneticians do not have the capacity to judge vowels in this detailed way. Consequ...

We show that an elation generalised quadrangle which has p + 1 lines on each point, for some prime p, is classical or arises from a flock of a quadratic cone (i.e., is a flock quadrangle).

We show that an elation generalised quadrangle which has p + 1 lines on each point, for some prime p, is classical or arises from a flock of a quadratic cone (i.e., is a flock quadrangle).

Proving that a function satisfies the quadrangle inequality is a powerful and elegant way to show that a dynamic programming algorithm to compute that function can be sped up by a factor of the input size. In this paper we consider two problems that do no fit in the usual general cases of functions that satisfy the quadrangle inequality but for which the proof of the quadrangle inequality still...

We investigate generalized quadrangles Γ that admit at least two projective axes of symmetry. We show that if there are three such axes incident with a common point x, then x is a translation point of Γ. In case that Γ is moreover a compact connected quadrangle with topological parameters (p, p), p ∈ N, then Γ is a topological translation generalized quadrangle. We further investigate the case ...