Some problems on calc-alkali rock series

global results on some nonlinear partial differential equations for direct and inverse problems

در این رساله به بررسی رفتار جواب های رده ای از معادلات دیفرانسیل با مشتقات جزیی در دامنه های کراندار می پردازیم . این معادلات به فرم نیم-خطی و غیر خطی برای مسایل مستقیم و معکوس مورد مطالعه قرار می گیرند . به ویژه، تاثیر شرایط مختلف فیزیکی را در مساله، نظیر وجود موانع و منابع، پراکندگی و چسبندگی در معادلات موج و گرما بررسی می کنیم و به دنبال شرایطی می گردیم که متضمن وجود سراسری یا عدم وجود سراسر...

Some notes on Alkali-He SEOP

The factor σ is called the interaction cross section and has units of area. It is the probability of a single interaction per unit target point density per unit target region length. A cross section is useful because it isolates the part of the interaction probability that is due to the mechanism of the interaction. An equivalent definition of cross section is the probability of interaction per...

On some factorization problems

We consider three notions of factorization arising in different frameworks: factorizing languages, factorization of the natural numbers, factorizing codes. A language X ⊆ A∗ is called factorizing if there exists a language Y ⊆ A∗ such that XY = A∗ and the product is unambiguous. This is a decidable property for recognizable languages X . If we consider the particular case of unary alphabets, we...

Commcnts on Some Problems

Weyl Group Multiple Dirichlet Series: Some Open Problems

The problems described here concern Weyl group multiple Dirichlet series (WMDs). Let F be a totally complex algebraic number field containing the group μn of n-th roots of unity. We will assume that −1 is an n-th power in F . Let Φ ⊂ R be a reduced root system. Then one can attach to Φ and n a family of multiple Dirichlet series whose coefficients involve products of n-th order Gauss sums. Thes...