SLUMP
发表于 2025-3-28 17:33:10
http://reply.papertrans.cn/95/9429/942803/942803_41.png
OATH
发表于 2025-3-28 21:54:17
Paul Alpar,Heinz Lothar Grob,Peter Weimann,Robert Wintero spectral problems from physics and engineering.Presents a .The theoretical part of this monograph examines the distribution of the spectrum of operator polynomials, focusing on quadratic operator polynomials with discrete spectra. The second part is devoted to applications. Standard spectral probl
带伤害
发表于 2025-3-29 00:00:21
http://reply.papertrans.cn/95/9429/942803/942803_43.png
隐藏
发表于 2025-3-29 05:28:04
Paul Alpar,Heinz Lothar Grob,Peter Weimann,Robert Winterract theory of operators in Hilbert spaces. They give a complete spectral theory for ordinary differential expressions of arbitrary order n operating on -valued functions existence and construction of self-adjoint realizations via boundary conditions, determination and study of general properties of
instate
发表于 2025-3-29 08:44:32
http://reply.papertrans.cn/95/9429/942803/942803_45.png
Apraxia
发表于 2025-3-29 13:09:04
Paul Alpar,Heinz Lothar Grob,Peter Weimann,Robert Winterit is sufficient to determine the quadratic form of an operator. Quadratic forms are especially convenient for characterization of properties of self-adjoint operators. See, for example, Theorem 2.7.2 in this connection. For unbounded operators this approach works in the case of semibounded operator
万花筒
发表于 2025-3-29 16:28:24
http://reply.papertrans.cn/95/9429/942803/942803_47.png
Concomitant
发表于 2025-3-29 22:52:49
Paul Alpar,Heinz Lothar Grob,Peter Weimann,Robert Winterto the control theory of linear distributed parameter systems. The operators, we consider, are the dynamics generators for systems governed by 3-dimensional wave equation which has spacially nonhomogeneous spherically symmetric coefficients and contains a first order damping term. We consider this e
CARK
发表于 2025-3-30 00:19:00
Paul Alpar,Heinz Lothar Grob,Peter Weimann,Robert Winter and in engineering, just to mention a few, in ocean acoustics, integrated optics, and wave guides. See for example Tolstoy and Clay 1966, Marcuse 1974, and Brekhovskikh 1980. As is well known, stratified media, that is to say media whose physical properties depend on a single coordinate, can produc
heterogeneous
发表于 2025-3-30 05:06:04
http://reply.papertrans.cn/95/9429/942803/942803_50.png