The Chirality Theorem

Snail Chirality: The Unwinding

Most snails are coiled clockwise, but in some species rare genetic variants with reverse coiling occur. Now, a molecular determinant of coiling direction has been identified, the cytoskeletal regulator formin.

The Rome Approach to Chirality

Some general considerations on the problem of non perturbative definition of Chiral Gauge Theories are presented and exemplified within the particular proposal known as the Rome Approach.

Stegosaurus chirality

Introduction Most living things appear rather symmetrical: the external human form, for example, has a plane of mirror symmetry to good approximation. Snails, flounders, narwhals, crossbills, fiddler crabs and twining vines are members of the short but fascinating list of living things known instead to defy mirror symmetry by exhibiting exterior chirality. The study of this symmetry breaking li...

Chirality and the Conway polynomial

In recent workwith J.Mostovoy and T. Stanford, the author found that for every natural number n, a certain polynomial in the coefficients of the Conway polynomial is a primitive integer-valued degree n Vassiliev invariant, but that modulo 2, it becomes degree n-1. The conjecture then naturally suggests itself that these primitive invariants are congruent to integer-valued degree n-1 invariants....

Generation of the Ahlfors Five Islands Theorem