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Tiwari, S. K.
- Effectiveness of Different Seed Extraction Methods on Seed Value from the Cones of Pinus radiata
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Indian Forester, Vol 126, No 9 (2000), Pagination: 936-942Abstract
Cones of radiata pine or Pinus radiata are serotinous. The cone scales are stuck together by resin making natural seed release impossible for many years. In the present study cones were subjected to various heat treatments viz. Heated in a kiln at 65°C for 8 hours, heated in a microwave oven set at high poser for 60 seconds or submerged in boiling water of 120 seconds. Subsequent rate and extent of seed release was observed on day 1,3,6 and 7. Maximum and quickest seed release was observed following the kiln treatment. Seed viability assessed by Tetrazolium Test (TZ) and relative seed vigour assessed by Accelerated Aging (AA) test both showed that seed extracted by the kiln method was superior to that obtained by either of the other two methods. The effectiveness of suitable methods of extraction of seeds from cones of P. radiata in the light of economic importance is discussed.- Cone Metric Space and Fixed Point Theorems for Pair of Generalized Contractive Mappings
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S. K. Tiwari
1,
R. P. Dubey
1
Affiliations
1 Department of Mathematics, Dr. C.V. Raman University, Bilaspur (C.G.), IN
1 Department of Mathematics, Dr. C.V. Raman University, Bilaspur (C.G.), IN
Source
International Journal of Mathematics Research, Vol 5, No 1 (2013), Pagination: 77-85Abstract
In his paper, we extend and generalize some common fixed point theorems for contractive mappings in cone metric spaces. Our results generalize several well known of recent results.Keywords
Fixed Point, Common Fixed Point, Generalized Contractive Mapping, Complete Cone Metric Space, Ordered Banach Space.References
- L. G. Huang, X. Zhang, Cone metric spaces and fixed point theorems of contractive mappings, Journal of Mathematical Analysis and Application 332 (2007), 1468 – 1476.
- S. Rezapour, Hamlbarani, Some notes on the paper “Cone metric spaces and fixed point theorem of contractive mappings”, J. Maths. Anal. Appl., 345 (2008), 719 – 724
- K. Deimling, Non linear Functional Analysis, Springer – Verlag 1985
- B. E. Rhoades, A comparison of various definitions of contractive mappings, Trans. Amer. Math. Soc. 266 (1977), 257 – 290
- M. Abbas, G. Jungek, Common fixed point results for non commuting mappings without continuity in con metric spaces, J. Maths. Anly. Appl. 341 (2008), 416 – 420
- Dubey and A. Narayan, Cone metric space and Fixed point theorems for pair of contractive maps. Mathemetica Aeterna, Vol. 2, 2012, no. 839- 845.
- Akbar Azam, Arshad and Ismat beg, Common fixed point theorem in cone metric spaces, The Journal of non linear science and applications 2(2009),204 – 213
- Prevalence of Fungal Superinfection in Non-Tubercular Broncho-Pulmonary Diseases
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Affiliations
1 Departments of Tuberculosis & Respiratory Diseases and Microbiology, Motilal Nehru Medical College, Allahabad, IN
1 Departments of Tuberculosis & Respiratory Diseases and Microbiology, Motilal Nehru Medical College, Allahabad, IN