BIO-DATA - Andhra University, Visakhapatnam

BIO-DATA
Name : GUTTI VENKATA RAVINDRANADH BABU
Date of Birth : 05-01-1960
Sex : Male
Father’s Name : Gutti Nageswara Rao
Academic Qualifications : M.Sc., Ph.D.
Designation and Address : Professor,
Department of Mathematics,
Colleges of Science & Technology,
Andhra University,
VISAKHAPATNAM-530 003.
Phone: 0891-2844702 (O)
9440541623, 8897617623 (M)
House Address : Dr. G. V. Ravindranadh Babu,
Flat No:303, D. No. 6-20-8/16,
Abhimanyu Apartments,
East Point colony,
Visakhapatnam –530 017.
Phone: 0891-2784644
E-mail : gvr_babu@hotmail.com
Research Experience : Worked as Junior Research fellow
in the UGC Project entitled “Non-linear Random
Partial Differential Equation-A Probablistic Functional
Analysis Approach” from 12-5-82 to 30-08-1983.
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Worked as Research Scholar in the
Department of Mathematics, Andhra
University, Visakhapatnam from 12-5-82 to
30-6-1990.
CSIR Research Associateship: Worked as CSIR Research Associate in the
Department of Mathematics, Andhra University,
Visakhapatnam from 2-7-1990 to 31-12-1990.
Title of Ph.D. Thesis : Stability and Dichotomies for Impulse and
Generalized Differential Systems
( Ph.D. awarded in Jan. 1990 )
Teaching Experience : 1. Junior Lecturer at Govt. Jr. College,
Kurupam from 02-01-1991 to 24-03-1994.
2. Assistant Professor in the Department of
Mathematics, Andhra University,
Visakhapatnam from 25-03-1994 to
24-03-2003.
3. Associate Professor in the Department of
Mathematics, Andhra University,
Visakhapatnam from 25-03-2003 to 24-03-
2009.
4. Professor in the Department of Mathematics,
Andhra University, Visakhapatnam from
25-03-2009 to till todate.
Subjects taught at P.G. level : Real Analysis, Differential Equations,
Measure Theory, Functional Analysis and Dynamical
Systems.
Current Research Activity : Working on Non-linear Analysis, particularly
Fixed Point Theory and Applications,
Approximation of Fixed Points, Differential Equations,
Dynamical Systems.
Research Projects completed : 1. UGC Minor Research Project (grant
No.U4/4997/97-98) entitled
“Mathematical Modelling, Fixed Point Theory
and Applications”.
2. “A Study on Fixed Points by Altering
distances, Approximation of Fixed Points and
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its Applications to Wavelets” (UGC MRP No.
F. 8-8/2003 (SR)), dt. 30-03-2003.
Project Cost : Rs.3,90,960/-.
Prizes : Awarded Special Prize in Mathematical
Olympiad conducted by APAMT in 1979,
in Degree level, in Andhra Pradesh State, India.
Conferences Organized : 1. Organized “National Conference on Non-
Linear Analysis and Applications” during
March 27-29, 2000, in the Department of
Mathematics, Andhra University, Visakhapatnam as
Organizing Secretary.
I. TEXT BOOKS WRITTEN :
2. Organized “National Seminar on Recent
Trends in Algebra and Applications”
(NSRTAA – 2006) during December 29- 31,
2006, in the Department of Mathematics,
Andhra University, Visakhapatnam as
Organizing Secretary.
1. “Algebra, Vector algebra and Probability ’’ for Intermediate II year from the academic
year 1999-2000, published by Telugu Akademi , Hyderabad.
2. “Quantitative Techniques -1” for B.Com. I year students , published by Telugu Akademi ,
Hyderabad in the year 2001.
3. Revised the book ‘EAMCET – 2000’ published by Telugu Akademi , Hyderabad.
4. Prepared Lecture Notes on ‘Analysis’ for M.Sc. First year students of School of
Distance Education , Andhra University.
5. Prepared Lecture notes on ‘Linear Algebra , Differential Equations and Models’
for M.Sc. First year students of School of Distance Education , Andhra University
6. Prepared lecture notes on ‘Measure Theory and Functional Analysis’ for M. Sc.
Mathematics, 2 nd year students of School of Distance Education, Andhra
University.
7. Prepared lecture notes on ‘Integral Equations’ for M. Sc.Mathematics, 2 nd year
students of School of Distance Education, Andhra University
8. “Quantitative Techniques -2” for B.Com. II year students , published by Telugu
Akademi , Hyderabad in the year 2003.
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9. “Coordinate Geometry and Calculus ’’ for Intermediate II year from the
academic year 2004-2005, published by Telugu Akademi , Hyderabad
10. Prepared Lecture Notes on ‘Theory of Ordinary Differential Equations’ for 1 st
year students of Mathematics, Center for Distance Education, Acharya Nagarjuna
University, Guntur, in the year 2004.
11. Intermediate 2 nd year Mathematics, II-B, “Coordinate Geometry and Calculus” for
Intermediate II year students, from the academic year 2008-2009, published by
Telugu Akademi, Hyderabad.
II. (a) No. of Ph. D.’s awarded: 4
Name of the candidate and Title of the Thesis:
1. K. N. V. V. Vara Prasad, “Existence of common fixed points under weak
commutativity assumptions and comparison of fastness of the convergence
among certain iterations in Banach spaces “
Ph. D. awarded on 31- 07 -2008.
2. M. V. R. Kameswari, Existence of common fixed points, equivalence of the
convergence of certain iterations and approximation of fixed points of
multivalued maps.
Ph. D. awarded on 27 – 05 – 2009.
3. M. Lakshmi Sandhya, Some contributions to the fixed point theory on
complete metric spaces, Menger spaces, d – complete and F – complete
topological spaces.
Ph. D. awarded on 01 – 08 – 2010.
4. Alemayehu Geremew Negash, A study on the existence of common fixed
points of non-commuting maps, convergence of certain iterations and
invariant approximation results.
Ph. D. awarded on 01-02-2011.
(b) No. of M.Phil.’s awarded : 8
Title of the Dissertations :
1. Ch.Mallikharjuna Rao, “Some Fixed Point Theorems by Altering Distances”
(2002).
2. M.V.R.Kameswari, “A common Fixed Point Theorem and fixed points of
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asymptotically regular maps by Altering Distances” (2003).
3. A.Padmaja, “Irrredundant Bases” (2006).
4. B.Lalitha, Fixed point theorems involving generalized altering distance
functions (2007)
5. N.Mangapathi, Convergence of Ishikawa iteration with modified errors for a
pair of continuous hemicontractive maps (2007)
6. D. Ratna Babu, Existence of common fixed points for (f, g) – weakly
contractive maps, convergence and invariant approximation results (2009)
7. K. Nageswara Rao, Common fixed point theorems for four selfmaps satisfying
generalized φ −weak
contraction condition (2010).
8. Kasi Srinivasa Rao, Common fixed point theorems – A unified Approach,
(2011), 28-05-2011.
III ADMINISTRATIVE EXPERIENCE:
1. Served as Head, Department of Mathematics, A. U. from 25-03-2008 to
02-06-2011.
2. Working as Warden for Andhra University Science College Hostels on part
time basis since 02-02-1998.
IV RESEARCH PUBLICATIONS:
No. of Research Papers published: 57
1. Continuous solutions of Volterra Integral equations via β -measure of
non-compactness, (with S.V.Krishna and K.Satyavani), Pure and Applied
Mathematika Sci,Vol. XXIII, No.1-2, March, 1986, 29-35, MR0891845
(88k:45005).
2 Nonlinear Stielties – Volterra Integral Equations, (with S.V.Krishna and K.Satyavani), Pure
and Applied Mathematika Sci,Vol. XXIV, No.1-2,Sept, 1986, 41-46, MR0887888
(88e:45006).
3 Dichotomies for Impulsive Differential Systems, (with S.V.Krishna and J.Vasundhara
Devi), Journal of Mathematical Analysis and Applications, Vol. 163, No.2, 1992, 322-
344, MR1145835 (92m:34032).
4 Fixed Point Theorems in metric Spaces by altering distances, (with K.P.R.Sastry), Bull.
Cal. Math. Soc. Vol. 90, 1998, 175-182.
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5 Some Fixed Point Theorems by altering distances between the points, (with K.P.R.Sastry ),
Indian J.Pure & Appl.Math.,Vol.30, No.6, June 1999, 641-647.
6 A note on a fixed point result in Hilbert space, (with K.P.R.Sastry ), The Math. Edn. Vol.
33, No.2, June 1999, 88-89.
7 A common fixed point theorem by altering distances between the points, The Math. Edn.
Vol. 33, No.4, 1999, 218-221.
8 Convergence of Ishikawa and Mann iteration Schemes for a sequence of selfmaps in a
Hilbert space, (with K.P.R.Sastry), Proc. of the National Academy of Sci. Vol. 69, Section
A , No.4, 1999, 447-458, MR2001h:47110.
9 Fixed point theorems in complete metric spaces by using a continuous control function,
(with K.P.R.Sastry & D.Narayana Rao), Bull. Cal. Math. Soc. Vol. 91, 1999, 487-496.
10 Common Fixed points theorems in bounded metric spaces by altering distances, The
Math. Edn. (with K.P.R.Sastry & G.A.Naidu), Vol.XXXIV, No.3, Sept.2000, 173-179.
11. Approximation of Fixed points of strictly pseudocontractive mappings on arbitrary
closed, convex sets in a Banach space, (with K.P.R.Sastry),
Proc. of the Amer. Math. Soci. Vol .128, No.10, Oct. 2000, 2907-2909,
MR2000m:47082.
12. Generalization of common fixed point theorems for weakly commuting maps by
altering distances, Tamkang Journal of Math.(with K.P.R.Sastry, S.V.R.Naidu, & G.A.
Naidu), Vol.31, No. 3, 2000, 243-250, MR1778222.
13. Generalization of common fixed point theorems relating to the diameter of orbits,
Bull.Cal.Math.Soc., Vol.92, No.5, 2000, 348-350 (with K.P.R.Sastry and G.A.Naidu).
14. Common fixed points for four selfmaps under asymptotic regularity, Acta Cincia Indica,
Vol.XXVII M,No.1, 2001,13-16 (with K.P.R.Sastry and I.S.R.Krishna Murthy).
15. A note on the common fixed points of four selfmaps, Acta Cincia Indica, Vol.XXVII M,
No.2, 2001,199-201 (with K.P.R.Sastry and G.A.Naidu).
16. Convergence of an Ishikawa iteration scheme for nonlinear quasi-contractive mappings in
convex metric spaces (with K.P.R.Sastry and Ch. Srinivasa Rao), Tamkang Jour. of Math.
Vol.32, No.2, June 2001, 117-126, MR2002f:54033.
17. Fixed point theorems for selfmaps on compact metric spaces (with K.P.R.Sastry and
I.S.R.Krishna Murthy) , The Mathematics Edn.,Vol.XXXV, No.3, Sept.2001, 161-165.
18. A fixed point theorem by altering distances (with Shaik Ismail), Bull.Cal. Math. Soc.,
Vol.93, No.5, 2001, 393-398.
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19. A common fixed point theorem in complete metric spaces by altering distances(with
K.P.R.Sastry), Proc. Nat. Acad . Sci. India, Vol.71, Part III(A), 2001, 237-242,
MR2003c:54080.
20. Convergence of an Ishikawa iteration scheme for a nonlinear quasi-contractive pair of
selfmaps of convex metric spaces (with K.P.R.Sastry and Ch. Srinivasa Rao), Indian
Jour.Pure and Appl. Math., Vol.33, Feb.2002, 203-214, MR2003c:54081.
21. Improved convergence rate estimate of Ishikawa iteration process for Lipschitz strongly
pseudocontractive maps in a Banach space (with M. Krishna), Bull.Cal.Math.Soc., Vol.94 ,
No.4, 2002, 253-258.
22. Some common fixed point theorems by altering distances (with M.V.R. Kameswari), Proc.
Jangjeon Math. Soc., Vol. 6 (2), 2003, 107-117, MR2004i:54051.
23. Generalization of fixed point theorems relating to the diameter of orbits by using a control
function, Tamkang Jour. of Math. Vol. 35, No.2, 2004, 159-168, MR2056395
(2005c:47079).
24. Common fixed point theorems for weakly compatible maps using a contraction quadratic
inequality (with M. V. R. Kameswari), Adva. Stud. in Contem. Math. Vol. 9(2), 2004, 139-
152, MR2090117 (2005e:54041).
25. Some fixed point theorems relating to the orbital continuity ( with M. V. R. Kameswari),
Tamkang Jour. of Math. Vol. 36, No.1, 2005, 73-80, MR2122796 (2005i:54049). .
26. Generalization of common fixed point theorems of Gregus type mappings by using the
technique altering distances, (with K.N.V.V. Vara Prasad), The Math. Education, Vol.
XXXIX, No. 2, June 2005, 98-106.
27. Convergence of Ishikawa iterates for a multi-valued mappings with a fixed point (with
K.P.R. Sastry), Czechoslovak Math. Journal, 55 (130), 2005, 817-826, MR2184365
(2006g:54049).
28. Generalization of Emmanuele’s Fixed Point Theorems in Complete Metric Spaces (with M.
V. R. Kameswari), Procee. of XII Ramanujan Symposium on ‘Recent Trends in Analysis’,
March 2-4, 2005, 46-54, Publications of the Ramanujan Institute, No.11.
29. Mann iteration converges faster than Ishikawa iteration for the class of Zamfirescu
operators (with K. N. V. V. Vara Prasad), Fixed Point Theory and Applications, 2006,
Article ID 49615, (2006),1-6, MR2210912 (2006k:47110).
29A Erratum: Mann iteration converges faster than Ishikawa iteration for the class
of Zamfirescu operators (with K. N. V. V. Vara Prasad), Fixed Point Theory
and Applications, 2007, Article ID 97986, (2007),1-6, MR2274561
(2007h:47087).
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30 Some common Fixed point theorems of two pairs of weakly compatible maps (with
K.N.V.V. Vara Prasad), Journal of Applicable Functional Differential Equations, Vol.1,
No.1, 2006, 9-22, MR2293934 (2007m:54036).
31 Common fixed point theorems of different compatible type mappings using Ciric’s
contraction type condition (with K.N.V.V. Vara Prasad), Mathematical
Communications, Vol. 11, No.1, 2006, 87-102, MR2243051 (2007e:54049).
32. Comparison of fastness of the convergence among Krasnoselskij, Mann and
Ishikawa iterations in arbitrary real Banach spaces (with K. N. V. V. Vara
Prasad), in ‘Fixed Point Theory and Applications’, Vol.2006, Article ID 35704,
1-12. (2006), MR2282320 (2007h:47086).
33. On fixed point theorems for a pair of compatible maps using a control function (with K.
N. V. V. Vara Prasad), Proc. of the Jangjeon Math. Soc. Vol. 10 (1), 2007, 55-70,
MR2431628 (2009g:54986).
34. Equivalence of the convergence of Mann iteration with modified errors and Ishikawa
iteration with modified errors for the class of uniformly continuous, strongly
pseudocontractive maps (with M.V.R.Kameswari), Tamkang J. of Math., Vol.38, No.3,
2007, 83-93.
35. Common fixed point theorems involving two generalized altering distance functions in
four variables (with G.Lalitha and M.L.Sandhya), Proc. Jangjeon Math. Soc., Vol.10(1)
2007, 83-90, MR2431630 (2009g:54087).
36. A fixed point theorem on asymptotic contractions, (with K.P.R. Sastry, S. Ismail, and
M.Balaiah), Mathematical Communications, Vol. 12, No.2, 2007, 191-194.
37. A note on a fixed point theorem of Berinde on weak contractions, (with M. L. Sandhya
and M. V. R. Kameswari), Carpathian J. of Mathematics, Vol. 24(1), 2008, 8-12,
MR2410201 (2009e:54086).
38. Convergence theorems of Ishikawa iterates with modified errors for Multi-valued
Nonexpansive/Quasi-contractive maps in Hilbert spaces (with M. V. R. Kameswari and
M. L. Sandhya), Communications on Applied Nonlinear Analysis, 15(2008), No. 2, 27-
38. MR2414362 (2009f:47084).
39. Weakly biased maps and common fixed point theorems under rational inequality (with
M. V. R. Kameswari) Advanced Studies in Contemp. Math., Vol. 17, No. 1, 2008, 25-
39, MR2428535 (2009g:54088).
40. Common fixed point theorems using different contractive type conditions involving
rational expressions (with M. V. R. Kameswari), Proceedings of the Jangjeon Math. Soc.,
vol. 11, No. 2, 2008, 113 -136.
41. Fixed points of strip ϕ-contractions (with K. P. R. Sastry and M. V. R.
Kameswari), Mathematical Communications, Vol. 14, No. 2, 2009, 183 – 192.
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42. Weak contractions in Menger spaces (with K. P. R. Sastry and M. L. Sandhya),
Journal of Advanced Research in Pure Mathematics, Vol. 2, Issue. 1, 2010,
26– 35.
43. Weak contractions in Menger spaces – II (with K. P. R. Sastry and M. L.
Sandhya), Journal of Advanced Research in Pure Mathematics, Vol. 2, Issue. 1,
2010, 65 – 73.
44. Common fixed point theorems in F-complete topological spaces, (with K. P. R.
Sastry and M. L. Sandhya), Thai J. of Mathematics, Vol. 8, No. 1, 2010,
43 – 50.
45. Point of coincidence and common fixed points of a pair of generalized weakly
contractive maps (with G. N. Alemayehu), Journal of Advanced Research in
Pure Mathematics, Vol. 2, Issue 2, 2010, 89 – 106.
46. Common Fixed Point Theorems of Generalized Contraction, Zamfirescu Pair
of maps in Cone metric spaces (with G. N. Alemayehu and K. N. V. V. Vara
Prasad), Albanian Journal of Mathematics, Vol. 4, No. 1, 2010, 19 – 29.
47. A common fixed point theorem for weakly compatible mappings, (with G. N.
Alemayehu), Applied Mathematics E-Notes, Vol. 10, 2010, 167-174.
48. Common fixed points of two pairs of generalized weakly contractive maps,
(with K. Nageswara Rao and G. N. Alemayehu), ‘Advanced Studies in
Contemporary Math’, Vol. 20, No. 4, 575-594, 2010.
49. Existence of common fixed points via modified Mann iteration in convex metric
Spaces and an invariant approximation result (with G. N. Alemayehu),
Tamkang J. of Math., Vol. 41, No. 4, 335-347, 2010.
50 Fixed points of nodal contractions in cone metric spaces, (with G. N.
Alemayehu) to appear in Tamkang J. Math., Vol. 42, No. 1, 39-51, 2011.
51. A fixed point theorem of generalized weakly contractive maps in orbitally
complete metric spaces, (with P. D. Sailaja), Thai J. Math., Vol. 9, No. 1, 1-10,
2011
52. Existence of common fixed points for weakly biased maps satisfying weakly
contractive condition involving rational expressions (with G. N. Alemayehu),
Proceedings of the Jangjeon Math. Society, Vol 14, No.1, 115-133, 2011.
53. Common fixed point theorems for occasionally weakly compatible maps
satisfying property (E. A.) using an inequality involving quadratic terms (with
G. N. Alemayehu), Applied Mathematics Letters, Vol. 24, No.6, 975-981, 2011.
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54. On common fixed points of weakly compatible maps satisfying ‘Generalized
Contraction condition (B)’ (with Mujahid Abbas and G. N. Alemayehu),
FILOMAT, Vol. 25, No. 2, 9-19, 2011.
55. Common fixed point theorems of noncommuting quasi-contractive selfmaps
(with G. N. Alemayehu), accepted for publication in the Journal of Advanced
Research in Pure Mathematics.
56. Common fixed points of (ψ, φ) weak quasi contractions with property (E.A.) (with
P. D. Sailaja), accepted for publication in International Journal of Mathematics and
Scientific Computing (IJMSC).
57. Common fixed point theorems of Ciric type weak contractions in cone metric spaces,
(with P. D. Sailaja), accepted for publication in Thai Journal of Mathematics.
SEMINARS, SUMMER SCHOOLS, CONFERENCES AND WORKSHOPS ATTENDED:
S.No. Name and Place Year
1. 72 nd Session of Indian Science Congress at
Lucknow University, India.
2. 50 th Conference of Indian Mathematical
Society, at Sardar Patel University, Anand,
India.
3. 51 st Annual Conference of Indian
Mathematical Society, at University of
Cochin, Cochin, India.
4. International Symposium on Nonlinear
Analysis and Applications to Bio-
Mathematics, at Dept. of Applied
Mathematics, Andhra University,
Visakhapatnam.
5. Summer School on ‘Descriptive Set Theory
and Applications’ at Indian Statistical
Institute, Calcutta.
6. Orientation Course organized by Academic
Staff College, Andhra University,
Visakhapatnam.
7. Participated in the NBHM workshop on
‘Wavelets and Applications organized by
Madhya-Desh Bhoj University, Bhopal, India.
8. National Seminar on ‘Applications of
Differential Equations to Mathematical
Sciences’, organized by Dept. of Mathematics,
S.K.D. University, Ananthapur, India.
10
Jan. 2-8, 1985
Feb. 6-8, 1985
Dec. 28-30, 1985
Aug. 24-28,1987
May 29-June 17,1995
Sept. 5-30,1995
June 1-21,1997
June 30,1997

9. International Symposium on Non-linear
Analysis and Applications to
Bio-Mathematics,at Dept. of Applied
Mathematics, Andhra University, India.
10. Andhra Pradesh Society for Mathematical
Sciences organized by the Dept. of
Mathematics, Dr. L.Bulliah Postgraduate
College, Visakhapatnam.
11. State level Seminar cum workshop on
Mathematics Syllabus at Intermediate level, at
Dr. V.S.Krishna Govt. College,
Visakhapatnam.
12. Attended IISC.-T.I.F.R. Short term visitors
programme for collaborative research work
with Prof. P.N.Srikanth, Dept. of Math.,
T.I.F.R. Centre, I.I.Sc., Bangalore.
13. Present ed a paper entitled ‘Convergence of
Ishikawa Iterates for a Multi-valued mapping
with a Fixed point at the conferences on
‘Analysis and Allied Topics’ at Dept. of
Math. Aligarh Muslim University, Aligarh,
India.
14. Participated in the UNESCO – I.M.S.C.
Regional Training Programme at the Institute
of Mathematical Sciences, Chennai, India.
15. Participated in the International Instructional
workshop on ‘Wavelets and Applications’ at
the Dept. of Mathematics, University of Delhi,
Delhi.
16. Participated in the Regional Training course in
University Sciences Teaching, sponsored by
UNESCO and organized by IGNOU, New
Delhi.
17. Visited IMSc. as an associate for
collaborative research work with
Prof. M.Krishna, Dept. of Mathematics,
IMSc., Chennai.
18. Attended the programme of Refresher Courses
to Junior Lecturers as ‘RESOURCE PERSON’
in Mathematics organized by Board of
Intermediate Education, Hyderabad.
19.
Participated and presented a paper entitled
“Fixed point theorems for asymptotically
regular selfmaps by altering distances’ in IX
A.P. Society for Mathematical Sciences
11
Aug. 11-15,1997
Oct. 5-6, 1997
Dec 13 & 14,1997
June 1-21,1998
Aug. 27-29,1998
Nov. 9-21,1998
Aug. 16-27,1999
Nov, 15-26,1999
May 1-June 30,2000
Nov.27-30, 2000
Feb. 23-27, 2001

organized by A.U. Dr.B.R.Ambedkar
P.G.Centre, Etcherla, Srikakulam.
20. Participated in the Workshop on ‘Discrete
Dynamical systems’ held in the Department of
Mathematics and Statistics, Univ. of
Hyderabad, Hyderabad – 500 046.
21. Participated in the short-term project on
‘SENSITIVITY’ of Dynamical Systems held
in the Department of Mathematics and
Statistics, Univ. of Hyderabad, Hyderabad.
22.
Participated in the ‘International Conference
and Instructional Workshop on Wavelets and
their Applications’, organized by School of
Mathematics, Anna University, Chennai.
23. Visited IMSc., Chennai as an Associate for
collaborative research work with Prof. M.
Krishna, Dept. of Maths, IMSc., Chennai.
24. Participated in the Workshop on ‘Discrete
Dynamical systems’ held in the Dept. of
Mathematics and Statistics, Univ. of
Hyderabad, Hyderabad – 500 046 and
delivered a lecture on “Dense orbits almost
implies sensitivity dependence on initial
conditions”.
25. Participated In The UGC Refresher Course In
‘Mathematics And Computer Science’
conducted by Dept. of Applied Mathematics,
Sri Padmavati Mahila Visvavidyalayam,
Tirupati.
26. Participated in the ‘UGC Refresher course in
Mathematics’ at UGC Academic Staff
College, Andhra University, Visakhapatnam.
27. Participated in the 4 th workshop on ‘Discrete
Dynamical Systems’ held in the Dept.
Mathematics & Statistics, Univ. of Hyderabad,
Hyderabad – 500 046.
28. Delivered an invited talk on ‘Fixed points by
altering distances’ in the “National Seminar on
Mathematics and its Applications” held in the
Dept. of Mathematics, Bengal Engg. College
( A Deemed University) , Howrah – 711103.
29. Participated in ‘Instructional Workshop on
Fractal Geometry and Nonlinear Dynamical
Systems’ organized by the Department of
Mathematics, Delhi University, Delhi.
12
July 21-23, 2001
Sept.22-25, 2001
Jan. 4-8, 2002
Dec. 24, 2001
to
Jan.15, 2002.
May 24-31, 2002
Sept. 11 – Oct. 1, 2002.
June 30 – July 20, 2003.
Feb. 19 – 22, 2004.
March 27, 2004.
Oct. 4-8, 2004.

30. Delivered an invited talk on “Generalization of
some known fixed point theorems by using the
technique altering distances” in the XII
Ramanujan Symposium on ‘Recent Trends in
Analysis’ Organized by the Ramanujan
Institute for Advanced study in Mathematics,
University of Madras, Chennai.
31. Participated and presented a paper entitled
‘Mann iteration converges faster than Ishikawa
iteration for the class of Zamfirescu operators’
in the XIV congress of APSMS at College of
Engg., GITAM, Visakhapatnam.
32. Participated and presented a paper (talk)
entitled “Comparison of fastness of the
convergence of certain iterations to the Fixed
Point” in the National Conference on ‘Number
Theory, Fixed Point Theory and their
Applications’ at Dept. of Mathematics,
Osmania University, Hyderabad.
33. Participated and presented a talk entitled
“Equivalence and Comparison fastness of the
convergence of certain iterations in Banach
Spaces” in the ‘National Conference on
Mathematical Analysis and its Applications’ at
Department of Mathematics, Berhampur
University, Berhampur – 760 007.
34. Participated and presented a paper entitled
“Convergence of Ishikawa iterates with
modified errors for a multi-valued map in
Hilbert spaces” in the XVI Congress of
Andhra Pradesh Society for Mathematical
Sciences, organized by national Geophysical
35
36
research Institute (CSIR), Hyderabad.
Participated and presented a paper entitled
‘Meir – Keeler type contractions by using a
control function’ in the 95 th Indian Science
Congress at Andhra University,
Visakhapatnam.
Participated and presented a paper entitled
‘common fixed points using different
contractive type conditions involving rational
expressions’ in the National Seminar on
Analysis, Differential equations and
Applications’ organized by ‘The Dept. of
Mathematics, faculty of science, The M. S.
Univ. of Baroda, Vadodara.
13
March 2-4, 2005.
Sept. 09-11, 2005.
Aug 30-31, 2007.
Nov. 03-04, 2007.
Dec. 08-10, 2007.
Jan. 03-07, 2008.
Jan. 30 -31, 2009.

37
38
39
40
41
42
Participated and delivered an invited talk
entitled “weakly biased maps and common
fixed points ” in the ‘National Conference on
Analysis and its Applications’ (AA-BHU-
2009), organized by the Department of
Mathematics, Banaras Hindu University,
Varanasi – 221 005, India.
Participated and delivered an invited talk
entitled “ Generalized weak contraction
condition and common fixed point theorems”
in the ‘10 th International Conference on
Nonlinear Functional Analysis and
Applications’ held at Kyungnam University,
Masan, Korea.
Delivered an invited talk entitled “ Existence
of common fixed points of C q - commuting
maps, invariant approximations and
convergence results” in the International
conference on “Recent Advances in
Mathematical Sciences and Applications
(RAMSA – 09)” organized by Gayatri Vidya
Parishad - Prof. V. Lakshmikantham Institute
for Advanced Studies, G. V. P. College of
Engineering, Visakhapatnam during
Dec. 19 – 22 , 2009.
Delivered a talk entitled “Existence of
common fixed points for a pair of generalized
weakly contractive maps” in the International
Congress of Mathematicians, Hyderabad,
India.
Delivered a talk on “Vector Calculus” in the
workshop entitled ‘Vector analysis and
Applications’ organized by the Department of
Mathematics, Govt. College(A), Rajahmundry.
Delivered an invited talk on “Riemann
integration” in Vignan Sravanthi Seminar
conducted by Department of Mathematics, at
Govt. Degree College for men, Srikakulam.
43 Delivered a talk on “Vector differentiation and
Vector integration” in the National Seminar on
“Linear Algebra and Vector Analysis”
conducted by the Department of Mathematics
and Statistics, P.R.Govt. College (A),
Kakinada.
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March 19 – 21, 2009
July 27 – 31, 2009.
Dec. 22, 2009.
August 19-27, 2010.
Oct. 07, 2010.
Dec. 22, 2010.
26 th and 27 th July, 2011

Place : Visakhapatnam Signature:
Date : 22-02-2012 ( G. V. RAVINDRANADH BABU )
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