In the onerous task of the completion of this thesis, it

acquittance
In the onerous task of the completion of this thesis,
it is a pleasure to record my deep sense of gratitude
for
ACADEMIC ASSISTANCE
to Mr. U.B. jangam who has lured me into the General Theory
of Relativity.
to Dr. G. G.Asgekar, and Mr. Ibohal Singh, of the Department
of Mathematics who kept their rich collection of
reprints of research papers on Relativity at my disposal
and for perusal of the manuscript,
to Dr. K.L. Narayana, M. Inst. &„
(London), of the
Department of Physics who enlightened me on the physical
significance of certain mathematical concept,
to Dr.A.B.P.Rao, Solapur College, Solapur, who has demonstrated
tile exploitation of the null formalism,
to Dr.S.M.Chitre, Tata Institute of Fundamental Research,
Bombay who perused some of my research papers,
to Dr. M.H.Gokhale, Indian institute of science, Bangalore
for stimulating discussions on Relativistic Astrophysics.
For OFFICIAL SANCTIONS
I would liKe to thank
Dr.B.R.Bhonsle, (former Head of the Department), ViceChancellor of Marathwada University, Aurangaoad who
used his good offices for allotting a Research fellowship
to me.
and
■*
Dr. R. K. Saxena, Prof . and Head of the Department of
Mathematics, shivaji University, Kolhapur, who showed
keen interest in the progress of my research.
My appreciation for warm
HOSPITALITY
is due
to Dr. J.K, Rao, Director of All India Winter School, who
extended me an invitation to participate in the 'Winter
School on Differential Geometry and Applications to
Relativity* at Saurashtra University, Bhavnagar
(December 30, 1978 to January 28, 1979),
to Dr. A.R.Erasanna, physical Research Laboratory, Ahmedabad,
Convener, Einstein Centenary symposium, for the
exquisite facilities for interacting with a galaxy of
famous contributors to Relativity - including Prof.Ezra
Newman around whose formalism this thesis is designed.
(From January 29 to February 3, 1979),
to Dr. M, Nagaraj of Bangalore University and Prof. C.v.
Vishveshwara of Raman Research Institute, Bangalore,
Directors of the 9th General Relativity and Gravitation
Symposium, who afforded me ample time for the presenta­
tion of my paper.
(December 23-25, 1979).
to Dr. T.M.Karade, Chairman, Einstein Centenary symposium,
who generously provided me an opportunity to be
acquainted with active research workers from U.s.A.,
Japan, Canada# Italy# Greece (February 17-20# 1980).
PERSONAL
Warm regards are due
to Lieut. Col. S. S.Bhonsle# MLA# Saw ant wadi fat his
exquisite encouragement#
to Shri B.N. Katkar,
S.P. K, Mahavidyalaya# Sawantwadi for
his affectionate advise throughout my career as a
student.
TECHNICAL ASSISTANCE
The intricate arabesque of the mathematical formulae
needs a careful and deft handling and a commensurate dextrous
typing of the thesis has been provided by Mr.
V.M.Kumbhar#
whom I thank heartily.
Embellishments and a piquant get up of the thesis
are due to the friendly counsel of Mr. K.G.Chacfco# Research
Technician# Department of Zoology# whom I gratefully
acknowledge.
Prof.
S.M#vaidya, Director# Computer Centre#
Poona
University# Poona# deserves special mention for giving me
interesting lessons on computer Programming FORTRAN IV.
( From 1st May 1977 to 15th June 1977).
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