Ovidiu Furdui


LIST OF PUBLICATIONS

I. Research Papers

1. MR2390439, On a Class of Integral Operators, Integral Equations and Operator Theory, Vol. 60, No.4, April, 2008, pdf

2. MR2433620, On a class of lacunary series in BMOA, J. Math. Anal. Appl. 342, Issue 2, 2008, 773-779, pdf

3. MR2431106, Norm Calculations of Composition Operators on Fock Spaces, Acta Sci. Math. (Szeged), 74 (2008), 281-288, pdf

4. The Fock Space and Related Bergman Type Integral Operators, Ph.D Thesis, April, 20, 2007.

5. From Lalescu's Sequence to a Gamma function limit, Gazette of the Aust. Math. Soc., Vol. 35, No. 5, November 2008, pdf

6. A convergence criteria for multiple harmonic series, To appear in Creative Math and Informatics.

7. Norm Calculations of a Class of Integral Operators, Submitted.

8. A note on a conjectured Nesbitt type inequality, with S. Wu, Submitted.

Notes

1. A note on an olympiad problem, Submitted.

2. A note on an integral identity of Ramanujan.

Papers on elementary mathematics

1.The non-existence of integer solutions to py^2=x^4+x, with K. Zelator, To appear in The Mathematical Gazette, July 2010

 

 

II. Problems of mine that have been published in mathematics magazines

 

1. MR1543948, Problem 10904, The American Mathematical Monthly, Vol.108, No.9, Nov. 2001, (pdf)

2. Problem 10950, The American Mathematical Monthly, Vol.109, No6, June-July 2002, (pdf)

3. Problem 11015, The American Mathematical Monthly,Vol.110, No5, May 2003, (pdf)

4. Problem 767, The College Mathematics Journal, Vol.35, No1, January 2004

5. Problem 773, The College Mathematics Journal, Vol.35, No2, March 2004

6. Problem B-926, The Fibonacci Quarterly, Vol.39, No5, November 2001

2002

7. Problem B-931, The Fibonacci Quarterly, Vol.40, No1, February 2002

8. Problem B-932, The Fibonacci Quarterly, Vol.40, No1, February 2002

9. Problem B-933, The Fibonacci Quarterly, Vol.40, No1, February 2002

10. Problem B-935, The Fibonacci Quarterly, Vol.40, No2, May 2002

2003

11. Problem B-955, The Fibonacci Quarterly, Vol.41, No1,February 2003

12. Problem B-956, The Fibonacci Quarterly, Vol.41, No2, May 2003

13. Problem B-963, The Fibonacci Quarterly, Vol. 41. No4, August 2003

14. Problem B-979, The Fibonacci Quarterly, Vol.42, No2, May 2004

15. Problem H-602, The Fibonacci Quarterly, Vol.41, No4, August 2003

16. Problem 144, MJMS, Vol.15, No3, Fall 2003

17. Problem 150, MJMS, Spring 2004

18. Problem 1070, The Journal, Fall 2003

2004

19. Problem 1075, The Journal, Spring 2004

20. Problem 1085, The Journal, Fall 2004, PME JOURNAL

21. Problem 2979, Crux with Mayhem, Vol.30, No7, November 2004

22. Problem 2985, Crux with Mayhem, Vol.30, No7, November 2004

23. Problem 4784, School Science and Mathematics, Vol.103, May 2003

24. Problem 570, The Pentagon, Vol.63, Fall 2003

25. Problem 154, MJMS, Vol.17, No1, Winter 2005, MJMS

26. Problem 156, MJMS, Vol.17, No1, Winter 2005

27. Problem 4819, School Science and Mathematics, Vol.103, No3, March 2004

2005

28. Problem 3041, Crux with Mayhem, Vol.31, No 4, May 2005

29. Problem 3043, Crux with Mayhem, Vol.31, No 4, May 2005

30. Problem Q 951. Mathematics Magazine, Vol. 78, No 3, June 2005

31. Problem H-624, The Fibonacci Quarterly, Vol. 43, May 2005, No2

32. Problem B-999, The Fibonacci Quarterly, Vol. 43, May 2005, No2

33. Problem 809, The College Mathematics Journal Vol.36, No.4, September 2005

34. Problem 158, MJMS, Vol.17, No 2, Spring 2005, MJMS

35. Problema 43, La GACETA DE LA RSME, Vol. 8. 3. 2005, LA GACETA DE LA RSME

36. Problem 812, The College Mathematics Journal, Vol.36, No5, November 2005

37. Problem 1733, Mathematics Magazine, Vol. 78, December 2005

38. Problem H-634,The Fibonacci Quarterly, Vol. 43, No. 4, November 2005

2006

39. Problem 816, The College Mathematics Journal, Vol.37, No.1, January 2006

40. Problema 50, LA GACETA DE LA RSME, Vol.9. No.1, 2006, LA GACETA DE LA RSME

41. Problem H-637, The Fibonacci Quarterly, Vol. 44, February 2006, Number 1

42. Problem U14, Mathematical Reflections, Issue 3, 2006, MATHEMATICAL REFLECTIONS

43. Problem U16, Mathematical Reflections, Issue 3, 2006, MATHEMATICAL REFLECTIONS

44. Problem 11229, The American Mathematical Monthly, Vol. 113, No.6, June-July 2006, (pdf), (pdf)

45. Problema 57, LA GACETA DE LA RSME, Vol. 9. No.2, 2006, LA GACETA DE LA RSME

46. Problem 06-007, A ‘Harmonic‘ Series, 2006, SIAM PROBLEMS AND SOLUTIONS

47. Problem 164, MJMS, 2006, Vol. 2

48. Problem 73, Univ. Beograd. Publ. Elektrotehn. Fak. Vol. 17, 2006, PUBL.ELEKTROTEHN.FAK.

49. Problem U21, Mathematical Reflections, Issue 4, 2006, MATHEMATICAL REFLECTIONS

50. Problem U27, Mathematical Reflections, Issue 5, 2006, MATHEMATICAL REFLECTIONS

51. Problema 65, LA GACETA DE LA RSME, Vol. 9. No.3, 2006, LA GACETA DE LA RSME

52. Problema 136, REOIM, No. 28, 2006

2007

53. Problem 844, The College Mathematics Journal, Vol. 38, January, 2007 pdf , Solution

54. Problem 1764, Mathematics Magazine, Vol. 79, February, 2007

55. Problem 1151, PME, Vol. 12, No. 6, Spring 2007, PME

56. Problema 143, REOIM, No. 29, 2007, Escolar

57. Problem 3226, Crux with Mayhem, Vol. 33, No.3, April 2007

58. Problem 3227, Crux with Mayhem, Vol. 33, No.3, April 2007

59. Problem Q 969, Mathematics Magazine, Vol. 80, No. 2, April 2007, pdf

60. Problem 79, AADM, Vol. 18, 2007, AADM

61. Problem 854, The College Mathematics Journal, Vol. 38, May 2007, pdf

Note: This result has been mentioned here pdf

62. Problem 4983, SSM, Vol. 107, No. 6, October 2007, pdf

63. Problem 166, MJMS, Vol. 19, 2007, pdf

64. Problema 82, La Gaceta de la RSME, Vol. 10, Mayo-Agosto, 2007, pdf

65. Problem 07-002, A Multiple Fractional Integral, SIAM, pdf

66. Problem 91.H, The Mathematical Gazette, Vol. 91, Number 521, July 2007, pdf

67. Problem H-648, The Fibonacci Quarterly, Vol. 44, Number 4, November 2006, pdf

68. Problem 11308, The American Mathematical Monthly, Vol. 114, No7, (pdf), (pdf)

69. Problem 3261, Crux with Mayhem, Vol. 33, No5, September, 2007, pdf

70. Problem 3262, Crux with Mayhem, Vol. 33, No5, September, 2007, pdf

71. Problema 149, Revista Escolar, Numero 30, Marzo-April, 2007, pdf

72. Problema 150, Revista Escolar, Numero 30, Marzo-April, 2007, pdf

 

73. Problem 3277, Crux with Mayhem, Vol. 33, November, 2007, pdf

 

74. Problem 3288, Crux with Mayhem, Vol. 33, November, 2007, pdf

 

75. Problem 11316, The American Mathematical Monthly, Vol. 114, No.8, October 2007, pdf

 

76. Problem F07-4, The Harvard College Mathematics Review, Vol. 1, No.2, Fall 2007, pdf

 

77. Problema 94, LA GACETA DE LA RSME, Vol. 10.3 2007, pdf

 

78. Problem H-653, The Fibonacci Quarterly , No.1, February 2007, pdf

 

79. Problem 1784, Mathematics Magazine, Vol.80, December 2007, pdf

 

2008

 

80. Problem 5001, School Science and Mathematics, Vol. 108, No.1, January 2008, pdf

 

81. Problem 11338, The American Mathematical Monthly, Vol. 115, No.1, January 2008, pdf

 

82. Problem 5006, SSM, Vol. 108, No.1, February 2008, pdf

 

83. Problem 3301, Crux with Mayhem , Vol. 34, No.1, February 2008, pdf

 

84. Problema 99, La Gaceta de la RSME, Vol. 11, No.1, 2008, pdf

 

85. Problem 5013, SSM, Vol. 108, March, 2008, pdf

 

86. Problem 1172, PME, Spring, 2008.

 

87. Problem 873, The College Mathematics Journal, Vol. 39, No2, March, 2008 pdf

 

88. Problem 33, Open Problem, European Mathematical Society, Newsletter, March 2008, pdf

 

89. Problem A, Nieuw Archief voor Wiskunde, 5/9, Maart, 2008, pdf

 

90. Problema 155, Revista Escolar, Numero 31, 2008, pdf

 

91. Problem S08-3, The Harvard College Mathematics Review, Vol.2, No.1, Spring 2008, pdf

 

92. Problem 877, The College Mathematics Journal, Vol.39, No.3, May 2008, pdf

 

93. Problema 103, La Gaceta de la RSME, Vol.11, No.2, 2008, pdf

 

94. Problem U90, Mathematical Reflections, Issue 3, 2008, pdf

 

95. Problem 885, The College Mathematics Journal, Vol. 39, No.4, September 2008, pdf

 

96. Problem 1797, Mathematics Magazine, Vol. 81, No. 3, June 2008, pdf

 

97. Problem 11371, The American Mathematical Monthly, Vol. 115, No. 6, June-July 2008, pdf

 

98. Problem U 95, Mathematical Reflections, 2008, Issue 4, pdf

 

99. Problema 113 , La Gaceta de la RSME, Vol. 11, No 3, 2008, pdf

 

100. Problem 08-001, A Cosine Integral Series, SIAM, 2008, pdf

 

101. Problem 5031, SSM, Vol. 108(6), October 2008, pdf

 

102. Problema 156, Revista Escolar, Numero 32, Mayo-Junio de 2008, pdf

 

103. Problema 157, Revista Escolar, Numero 32, Mayo-Junio de 2008, pdf

 

104. Problem 3357, Crux with Mayhem, Vol. 34, No. 5, September 2008, pdf

 

105. Problem 2005, Mathematics Magazine, Vol. 81, No. 4, October 2008, pdf

 

106. Problem 3057, SSM, Vol. 108, No. 7, November 2008, pdf

 

107. Problem 3366, Crux with Mayhem, Vol. 34, No. 6, October 2008, pdf

 

108. Problem 3375, Crux with Mayhem, Vol. 34, No. 6, October 2008, pdf

 

109. Problem 5043, SSM, Vol. 108, No. 8, December 2008, pdf

 

110. Open Problem 7, Problem Corner of RGMIA, 2008, pdf

 

111. Problem 3386, Crux with Mayhem, Vol. 34, No7, November 2008, pdf

 

112. Problem 3387, Crux with Mayhem, Vol. 34, No7, November 2008, pdf

113. Problem 92K, The Mathematical Gazette, November 2008

2009

114. Problem 11405, The American Mathematical Monthly, Vol.116, January 2009

115. Problem 893, The College Mathematics Journal, Vol.40, January 2009

116. Problem 895, The College Mathematics Journal, Vol.40, January 2009

117. Problem U114, Mathematical Reflections, Issue 1, 2009

118. Problem 5055, SSM, Issue 2, February, 2009

119. Problem 172, MJMS, Issue 1, 2009

120. Problem 2002, PME, Fall 2009

121. Problem 899, The College Mathematics Journal, Vol.40, No.2, 2009

122. Problem U119, Mathematical Reflections, Issue 2, 2009

 

Quickies

 

1. Problem Q969, Mathematics Magazine, Vol.80, April 2007, pdf

 

2. Problem Q976, Mathematics Magazine, Vol.80, December 2007, pdf

 

3. Problem Q980, Mathematics Magazine, Vol.81, April 2008, pdf

 

4. Problem Q984, Mathematics Magazine, Vol.81, No.4, October, 2008 pdf

 

5. Problem Q985, Mathematics Magazine, Vol.81, No.5, December, 2008 pdf

 

6. Problem Q988, Mathematics Magazine, To appear, February, 2009, pdf

 

TO APPEAR

Problem ***, The Mathematical Gazette, 2008

Problem ***, The Mathematical Gazette, 2008

 

Solutions of mine that have been published in mathematics magazines

1. Problem 986, The Journal, Spring 2001

2. Problem 995, The Journal, Fall 2001

3. Problem 1000, The Journal, Fall 2001

4. Problem 1031, The Journal, Fall 2002

5. Problem 537, The Pentagon, Vol.61, No1

6. Problem 544, The Pentagon, Vol.61, No1

7. Problem 545, The Pentagon, Vol.61, No2

8. Problem 547, The Pentagon, Vol.61, No2

9. Problem 556, The Pentagon, Spring 2003

10. Problem 559, The Pentagon, Spring, 2003

11. Problem 560, The Pentagon, Vol. 63, No1, Fall 2003

12. Problem 566, The Pentagon, Vol.63, No2, Spring 2004

13. Problem 133, MJMS, Vol.14, Fall 2002

14. Problem 136, MJMS, Vol.14, Fall 2002

15. Problem 138, MJMS, Fall 2003

16. Problem 143, MJMS, Vol.16, No3, Fall 2004

17. Problem 4750, School Science and Mathematics, Vol.102, May 2003

18. Problem 4774, School Science and Mathematics, Vol.104, January 2004

19. Problem B-969, The Fibonacci Quarterly, Vol.42, August 2004, No3

20. Problem B-971, The Fibonacci Quarterly, Vol.42, November 2004, No4

21. Problem 2797, Crux with Mayhem, Vol.29, No8, December 2003

22. Problem 2810, Crux with Mayhem, Vol.30, No1, February 2004

23. Problem 2840, Crux with Mayhem, Vol.30, No4, May 2004

24. Problem 2871, Crux with Mayhem, Vol.30, No6, October 2004

25. Problem 146, MJMS, Vol.17, No1, Winter 2005

26. Problem 147, MJMS, Vol.17, No1, Winter 2005

27. Problem 4812, School Science and Mathematics, Vol. 104 No 8 December 2004

28. Problem H-610, The Fibonacci Quarterly, Vol. 43, May 2005, No2

29. Problem 570, The Pentagon, Vol. 42, No2, Spring 2005

30. Problem 1097, The Journal, Volume 12, Fall 2005

31. Problem 4861, School Science and Mathematics, Vol. 105, No 8 December 2005

32. Problem 4867, School Science and Mathematics, Vol. 106, No 1, January 2006

33. Problem 2984, Crux with Mayhem, Volume 32, No.1, February 2006

34. Problem 4873, SSM, Vol. 102, No.2, February 2006

35. Problem B-1000, The Fibonacci Quarterly, Vol. 44, February 2006, Number 1

36. Problem U14, Mathematical Reflections, Issue 4, 2006, MATHEMATICAL REFLECTIONS

37. Problem U18, Mathematical Reflections, Issue 4, 2006, MATHEMATICAL REFLECTIONS

38. Problem 43, La Gaceta de la RSME, Vol. 9, No. 3, 2006, LA GACETA DE LA RSME

39. Problem 155, Vol. 18, Issue #2, Spring 2006, MJMS

40. Problem 159, MJMS, Vol. 19, Issue #1, Winter 2007, MJMS

41. Problem 826, The College Mathematics Journal, Vol. 38, May 2007, pdf

42. Problem B-1013, The Fibonacci Quarterly, Vol. 44, Number 4, November 2006

43. Problema 141, Revista Escolar, Numero 30, Marzo-April, 2007, pdf

44. Problema 143, Revista Escolar, Numero 30, Marzo-April, 2007, pdf

45. Problem 164, MJMS, Vol.19, No. 2, Spring 2007, pdf

46. Problem 18, EMS, Newsletter, March 2008, (with K. Zelator), pdf

47. Problem 22, EMS, Newsletter, March 2008, pdf

48. Problem 23, EMS, Newsletter, March 2008, pdf

49. Problem J85, Math. Reflections, 2008, Issue 3, pdf

50. Problem J87, Math. Reflections, 2008, Issue 3, pdf

51. Problem U88, Math. Reflections, 2008, Issue 3, pdf

52. Problem 1, RGMIA, 2008, pdf

 

 Problems for which I have submitted solutions

The American Mathematical Monthly

10824, 10874, 10884, 10880, 10904, 10895, 10919, 10886, 10941, 10950, 10944, 10934, 10954,

10955, 10959, 10962, 10970, 10973, 10987, 10996, 11011, 11015, 11016, 11030, 11101, 11046,

11159, 11172, 11177, 11197, 11206, 11196

Mathematics Magazine

1617, 1618, 1619, 1624, 1625, 1626, 1630, 1635, 1637, 1639, 1640, 1641, 1648, 1649, 1651, 1652,

1653, 1655, 1657, 1659, 1660, 1662, 1663, 1665, 1666, 1667, 1668, 1670, 1674, 1679, 1704, 1709,

1723 1724,

The College Mathematics Journal

705, 707, 709, 710, 718, 719, 720, 721, 722, 725, 726, 727, 730, 741, 742, 744, 747, 748, 756,

757, 759, 766, 767, 768, 769, 770, 792, 805, 819