منابع مشابه
CombinaTexas 2018 February 10 – 11 , 2018
In this talk we give combinatorial proofs of q-Stirling identities using restricted growth words. This includes a poset theoretic proof of Carlitz’s identity, a new proof of the q-Frobenius identity of Garsia and Remmel and of Ehrenborg’s Hankel q-Stirling determinantal identity. We also develop a two parameter generalization to unify identities of Mercier and include a symmetric function versi...
متن کاملDraft : January 11 , 2018 CHAPTER 1 . ONE - TIME PAD
Secure communication is the act of conveying information from a sender to a receiver, while simultaneously hiding it from everyone else. Secure communication is the oldest application of cryptography, and remains the centerpiece of cryptography to this day. After all, the word cryptography means “hidden writing” in Greek. So, secure communication is a natural place to start our study of cryptog...
متن کاملar X iv : h ep - p h / 01 11 11 5 v 1 9 N ov 2 00 1
We consider the Standard Model on a non-commutative space and expand the action in the non-commutativity parameter θ . No new particles are introduced, the structure group is SU(3)×SU(2)×U(1). We derive the leading order action. At zeroth order the action coincides with the ordinary Standard Model. At leading order in θ we find new vertices which are absent in the Standard Model on commutative ...
متن کامل$n$-cocoherent rings, $n$-cosemihereditary rings and $n$-V-rings
Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted, it is called a right co-$(n,d)$-ring if every right $R$-module is $(n, d)$-projective. $R$...
متن کاملEditorial Volume 6, Issue 1
The editor’s notes in our Journal have been so far a site for the clarification of the Journal’s policy and the task still continues. With an inclination towards solving our real world problems in language teaching (and literary studies, which I will discuss in the next issue of the Journal), we would like to take that the introduction of the concept of “life-world” to Social Sciences can be a ...
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ژورنال
عنوان ژورنال: Navegações
سال: 2018
ISSN: 1983-4276,1982-8527
DOI: 10.15448/1983-4276.2018.1.33011