Richard A. Schaeffer: 1951–2004

Has Richard Rorty a moral philosophy?

در این مقاله سعی دارم نشان دهم که رورتی هرچند همانند کانت فیلسوف اخلاق محسوب نمی­شود، ولی با این حال فلسفۀ اخلاقی دارد که باید آن را جدی گرفت. رورتی به نحو نظام­مند با مسائل اخلاقی درگیر نمی­شود آنطور که فیلسوفان مدرن و معاصر درگیرند. این مقاله دو بخش دارد: بخش نخست با مبانی فلسفۀ رورتی مثل ضد ماهیت باوری، داروین­گرایی، فرویدگرایی و تاریخ­گرایی سروکار دارد. بخش دوم که تا حدودی مفصل است، بسیاری ...

The Duffin-schaeffer Conjecture with Extra Divergence

Throughout this note we will use the following standard notation from elementary number theory: p denotes a prime number, μ(n) is the Möbius function, φ(n) is the Euler phi function, ω(n) denotes the number of distinct prime divisors of n, and τ(n) is the number of positive integers which divide n. Also we use λ to denote Lebesgue measure on R/Z and dimX to denote the Hausdorff dimension of a s...

The Markoff-Duffin-Schaeffer inequalities abstracted.

The kth Markoff-Duffin-Schaeffer inequality provides a bound for the maximum, over the interval -1 </= x </= 1, of the kth derivative of a normalized polynomial of degree n. The bound is the corresponding maximum of the Chebyshev polynomial of degree n, T = cos(n cos(-1)x). The requisite normalization is over the values of the polynomial at the n + 1 points where T achieves its extremal values....

Remembering Richard [Obituary, Richard A.Newton]

A head called Richard

This paper describes two preliminary experiments concerned with the construction of a robot head. The initial design and research is aimed at producing a system with two cameras and two microphones on a system capable of operating with the same degrees of freedom and reflex times as its biological counterpart. Whilst the primary goal of the project is develop an anthropomorphic system with the ...