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Open AccessIncluding a phase in the Bethe equations of the Hubbard model
We compute the Bethe equations of generalized Hubbard models, and study their thermodynamical limit. We argue how they can be connected to the ones found in the context of AdS/CFT correspondence, in particular...
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Book
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Chapter
Operator Approach to Linear Control Systems
The concept of control proposes that there are two objects at east a controlling one and a to-be-controlled object (here their physical is of no importance). The control consists of generating actions (signals...
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Chapter
Introduction to systems theory
This chapter treats some general properties of linear systems Since it is possible that systems under consideration are not control ones, the analysis of their properties (given below) is the basis which the t...
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Chapter
Linear control plants in a resolution space
Various facts about causal operators defined on Hilbert spaces and their extensions endowed with time structure were considered in Chapter 3. This provides us with tools permitting to give rich in content sett...
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Chapter
Linear quadratic optimization in feedback control class
In this chapter, two different methods of investigation of optimal control are developed.The first one is an abstract variant of the Wiener method: it is based on the reduction of the control problem to the pr...
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Chapter
Some computing methods in stationary finite-dimensional SLQPs
Let us turn to stationary finite-dimensional SLQPs on the infinite time interval with the aim to give some computing methods. By the reason there are made a survey and a comparative analysis of different tradi...
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Chapter
Resolution spaces
This chapter gives the description of some, in general, infinite-dimensional plants and revision of the concepts connected with them. There is introduced the concept of stochastic generalized element (stochast...
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Chapter
Linear quadratic optimization in preplanned control class
The linear quadratic problem (LQP) known as the optimization one for linear plants with a quadratic performance index. It being studied in detail (for finite-dimensional plants), until now there emerge papers ...
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Chapter
Finite-dimensional LQP
This chapter gives in general a classical variant of LQP for finite-dimensional plants both with a finite time interval and the infinite one. For the sake of simplicity the time is assumed to be discrete and p...
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Article
Neutron Absorption of Boron and Cadmium at Low Temperatures
IN the same arrangement as used for silver absorption1, we have measured the influence of temperature on the absorption of neutrons in Fermi's group C by boron and cadmium, using the 2.3 min. silver activity as d...
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Article
Absorption of Thermal Neutrons in Silver at Low Temperatures
WE have measured the absorption curves for neutrons of Fermi's1 group C using a silver target (2·3 min. activity) as detector, in the centre of a large Dewar vessel containing either liquid hydrogen or water at r...
