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Now showing items 1-10 of 28

#### Solvability of a multi-point boundary value problem of Neumann type

(1999)

Let f:[0,1]×?2?? be a function satisfying Carathéodory's conditions and e(t)?L1[0,1]. Let ?i?(0,1),ai??,i=1,2,…,m?2,0<?1<?2<?<?m?2<1 be given. This paper is concerned with the problem of existence of a solution for the ...

#### Impulse Control in Kalman-Like Filtering Problems

(1998)

This paper develops the impulse control approach to the observation process in Kalman-like filtering problems, which is based on impulsive modeling of the transition matrix in an observation equation. The impulse control ...

#### Emergency Control of Unstable Behavior of Nonlinear Systems Induced by Fault

(1998)

This paper presents the emergency control approach intended to urgently return to the stability basin the system states affected by abrupt changes in certain system coefficients on a short time interval. Because of its ...

#### Solvability for a Nonlinear Three-Point Boundary Value Problem with P-Laplacian-Like Operator at Resonance

(2001)

The purpose of this paper is to study the following three-point boundary
value problem which contains the nonlinear operator (φ(u
))
,
φ(u
)
= f (t, u, u
),
u
(a) = 0, u(η) = u(b), (1.1)
where η ∈ (a, b) is ...

#### Existence theorems for a second order m-point boundary value problem at resonance

(1995)

Let f:[0,1]×R2?R be function satisfying Caratheodory's conditions and e(t)?L1[0,1]. Let ??(0,1), ?i?(0,1), ai?0, i=1,2,…,m?2, with ?i=1m?2ai=1, 0<?1<?2<…<?m?2<1 be given. This paper is concerned with the problem of existence ...

#### Quantifying the signature of sediment composition on the topologic and dynamic complexity of river delta channel networks and inferences toward delta classification

(Geophysical Research Letters, 2016)

Deltas contain complex self-organizing channel networks that nourish the surface with sediment and nutrients. Developing a quantitative understanding of how controlling physical mechanisms of delta formation relate to the ...

#### Delta channel networks: 2. Metrics of topologic and dynamic complexity for delta comparison, physical inference, and vulnerability assessment

(Water Resources Research, 2015)

Deltas are landforms that deliver water, sediment and nutrient fluxes from upstream rivers to the deltaic surface and eventually to oceans or inland water bodies via multiple pathways. Despite their importance, quantitative ...

#### Delta channel networks: 1. A graph-theoretic approach for studying connectivity and steady state transport on deltaic surfaces

(Water Resources Research, 2015)

River deltas are intricate landscapes with complex channel networks that self-organize to deliver water, sediment, and nutrients from the apex to the delta top and eventually to the coastal zone. The natural balance of ...

#### Fluid flows of mixed regimes in porous media

(2017)

In porous media, there are three known regimes of fluid flows, namely, pre-Darcy, Darcy, and post-Darcy. Because of their different natures, these are usually treated separately in the literature. To study complex flows ...

#### Certain bivariate distributions and random processes connected with maxima and minima

(2018)

The minimum and the maximum of t independent, identically distributed random variables have (F) over bar (t) and F-t for their survival (minimum) and the distribution (maximum) functions, where (F) over bar = 1 - F and F ...