materials exhibit significant creep behavior at temperatures above 40% of their absolute melt temperature. lead, tin and their alloys are such materials which experience significant creep behavior in room temperature. one of the most important applications of the tin-lead alloys is soldering electronic circuits in electronic industry, and for lead are isolation walls and wet batteries. room tem...

We consider a one-parameter family of two-dimensional ordinary di erential equations with a slow parameter drift. Our equation assumes that when there is no parameter drift, there are two invariant curves consisting of equilibria, one of which is normally hyperbolic and whose stable and unstable manifolds intersect transversely. The slow parameter drift is introduced in a way that it creates tw...

We consider an adaptive finite state controlled Markov chain with partial state information, motivated by a class of replacement problems. We present parameter estimation techniques based on the information available after actions that reset the state to a known value are taken. We prove that the parameter estimates converge w.p.1 to the true (unknown) parameter, under the feedback structure in...

We construct new non-extremal rotating black hole solutions in SO(6) gauged fivedimensional supergravity. Our solutions are the first such examples in which the two rotation parameters are independently specifiable, rather than being set equal. The black holes carry charges for all three of the gauge fields in the U(1) subgroup of SO(6), albeit with only one independent charge parameter. We dis...

A comparison between Tsallis' statistics-based and generalized quasi-hyperbolic discount models in humans. Acknowledgements: The research reported in this paper was supported by a grant from the Grant-in-Aid for Scientific Research (" 21st century center of excellence " grant) from the Ministry of Education, Culture, Sports, Science and Technology of Japan, and Yamaguchi endocrinological disord...

Many natural computational problems have input consisting of two or more parts, one of which may be considered a parameter. For example, there are many problems for which the input consists of a graph and a positive integer. A number of results are presented concerning parameterized problems that can be solved (uniformly with respect to the parameter) in complexity classes below P , given a sin...

Fixed parameter approximability and hardness Name: Guy Kortsarz Affil./Addr. Rutgers University, Camden. Supported in part by NSF grant number 1218620

We consider Funaki’s model of a random string taking values in R d. It is specified by the following stochastic PDE, ∂u(x) ∂t = ∂2u(x) ∂x2 + Ẇ . where Ẇ = Ẇ (x, t) is two-parameter white noise, also taking values in Rd. We find the dimensions in which the string hits points, and in which it has double points of various types. We also study the question of recurrence and transience. Supported by...

and the coefficients in (1.3), which depend on the parameter N , {an,N : bn,N}n=0, bn,N > 0. ∗The authors acknowledge support from NATO Collaborative linkage grant PST.CLG.979738 and INTAS Research Network 03-51-6637. The first author was supported by grants RFBR-05-01-00522, NSh1551.2003.1, Program No. 1 DMS RAS. The second author was supported by an NSF grant. The third author was supported b...