We comment on Linde’s claim that one should change the sign in the action for a Euclidean instanton in quantum cosmology, resulting in the formula P ∼ e+S for the probability of various classical universes. There are serious problems with doing so. If one reverses the sign of the action of both the instanton and the fluctuations, the latter are unsupressed and the calculation becomes meaningles...

For S ⊆ {0, 1}, a Boolean function f : S → {−1, 1} is a halfspace over S if there exist w ∈ R and θ ∈ R such that f(x) = sign(w · x − θ) for all x ∈ S. We give bounds on the size of integer weights w1, . . . , wn ∈ Z that are required to represent halfspaces over Hamming balls S = {x ∈ {0, 1} : x1 + · · ·+ xn ≤ k}. Such weight bounds for halfspaces over Hamming balls have immediate consequences...

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recently, abbasbandy and asady have been proposed a modificationof the distance based approach, namely ``sign distance method''.however, in this paper, it is shown that this method has some drawbacks, i.e.,the result is not consistent with human intuition for specialcases and this method cannot always logically infer rankingorder of the images of the fuzzy numbers. in this paper, wepresent a re...

*Senior Resident, Department of Neurology, **Assistant Professor, ***Associate Professor Institute of Human Behaviour And Allied Science (IHBAS), Delhi 110095 Received: 07.05.2012; Accepted: 23.08.2012 W l s o n d i s e a s e i s a n i n b o r n c o p p e r m e t a b o l i s m d i s o r d e r with autosomal recessive pattern of inheritance caused by ATP7B mutation leading to abnormal accumulati...

explanation. Let us therefore turn to the background of the RHP-zeros and a simple example. Nonminimum phase zeros, as the engineering name indicates, originate from some strange internal phase characteristics, usually by contradictory signs of behaviour in certain frequency bands. As an example may function: P (s) = P1(s) + P2(s) = 1 s+ 1 − 2 s+ 10 = − s− 8 (s+ 1)(s+ 10) (9.73) The two transfe...