Stephen W. Jensen

Stephen W . Lehmkuhle

1. A. Rochon-Duvigneaud, Les Yeux et la Vision des Vertebres (Masson, Paris, 1943). 2. S. L. Polyak, The Vertebrate Visual System (Univ. of Chicago Press, Chicago, 1957). 3. G. L. Walls, The Vertebrate Eye (Cranbrook Institute of Science, Bloomfield Hills, Mich., 1942). 4. R. Shlaer, Science 176, 922 (1972). 5. Gratings of different manufacture, (i) engineruled gratings (Ronchi rulings) and (ii...

W. Stephen Wilson’s Contributions to Homotopy Theory

This paper is a survey of Steve’s work on BP and periodic cohomology theories. It was presented as a talk given in March 2007 at a conference celebrating Steve’s 60th birthday. 1. Cohomology of Ω-spectra and Hopf rings Steve Wilson’s thesis, directed in 1972 by Frank Peterson, started unstable BP theory as we know it. Part 1 of his thesis appeared as [13], where he shows that the spaces in the ...

Andrew B . Bernard , J . Bradford Jensen , Stephen J . Redding and Peter K . Schott Wholesalers and retailers in US Trade

Asymptotic behavior of alternative Jensen and Jensen type functional equations

In 1941 D.H. Hyers solved the well-known Ulam stability problem for linear mappings. In 1951 D.G. Bourgin was the second author to treat the Ulam problem for additive mappings. In 1982–2005 we established the Hyers–Ulam stability for the Ulam problem of linear and nonlinear mappings. In 1998 S.-M. Jung and in 2002–2005 the authors of this paper investigated the Hyers–Ulam stability of additive ...

Stephen H Bryant and Stephen F Altschul

The past two years have seen the rapid development of new recognition methods for protein structure prediction. These algorithms ’thread’ the sequence of one protein through the known structure of another, looking for an alignment that corresponds to an energetically favorable model structure. Because they are based on energy calculation, rather than evolutionary distance, these methods extend ...