Given a 3-uniform hypergraph H, subset M of V(H) is module H if for each $$e\in E(H)$$ e ∈ E ( ) such that $$e\cap M\ne \emptyset$$ ∩ ≠ ∅ and $$e\setminus \ , there exists $$m\in M$$ m M=\{m\}$$ = { } every $$n\in n we have $$(e\setminus \{m\})\cup \{n\}\in ∪ . For example, $$\emptyset$$ $$\{v\}$$ v where $$v\in V(H)$$ V are modules called trivial. A prime all its hypergraph, study prime, induc...

in the form of passive seismic methods, broadband seismometers have been used in hydrocarbon exploration. the frequency bandwidth typically studied is in the range of 1–6 hz. the observations on low frequency band of microtremors are used to calculate the spectral ratio of vertical and horizontal components (v/h) and power spectral density (psd). attributes based on the v/h ratio and the psd ha...

let g = (v, e) be a simple graph. hosoya polynomial of g isd(u,v)h(g, x) = {u,v}v(g)x , where, d(u ,v) denotes the distance between vertices uand v. as is the case with other graph polynomials, such as chromatic, independence anddomination polynomial, it is natural to study the roots of hosoya polynomial of a graph. inthis paper we study the roots of hosoya polynomials of some specific graphs.

An initial zonally symmetric quasigeostrophic potential vorticity (PV) distribution qi( y) is subjected to complete or partial mixing within some finite zone jyj , L, where y is latitude. The change in M, the total absolute angular momentum, between the initial and any later time is considered. For standard quasigeostrophic shallow-water beta-channel dynamics it is proved that, for any qi( y) s...

u n d o u b t e d l y, i n t h e l a s t d e c a d e s, t h e a s s e t p r i c i n g m o d e l i so n e o f m o s t i m p o r t a n t a n d, a t t h e s a m e t i m e, a t t r a c t i v e, f i n a n c e a r e a s. c a p m h a s b e e n t h e d o m i n a n t m o d e l i n t h i s s e c t i o n f o r m o r e t h a n 40 y e a r s. o n e r e a s o n i s i t s s t r o n g b a s e, w h i c h h a s b...