1917 YILI ÖNCESİ LEV TROÇKİ

Lev Manovich

The appearance of New Media Reader is a milestone in the history a new field that, just a few years ago, was somewhat of a cultural underground. Before taking up the theoretical challenge of defining what new media actually is, as well as discussing the particular contributions this reader makes to answering this question, I would like very briefly to sketch the history of the field for the ben...

Welding Fume Local Exhaust Ventilation (LEV)Evaluation: the Lincoln Electric X-Tractor Portable LEV System

Restricted Sumsets and a Conjecture of Lev

Let A, B, S be finite subsets of an abelian group G. Suppose that the restricted sumset C = {a + b: a ∈ A, b ∈ B, and a − b 6∈ S} is nonempty and some c ∈ C can be written as a + b with a ∈ A and b ∈ B in at most m ways. We show that if G is torsion-free or elementary abelian then |C| > |A| + |B| − |S| − m. We also prove that |C| > |A| + |B| − 2|S| − m if the torsion subgroup of G is cyclic. In...

Hilbert's programs: 1917--1922

Hilbert's finitist program was not created at the beginning of the twenties solely to counteract Brouwer's intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 192...

Hilbert's Programs: 1917-1922

Hilbert’s finitist programwasnot created at the beginningof the twenties solely to counteract Brouwer’s intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 1922. ...