default search action
Google
Google Scholar
Semantic Scholar
Internet Archive Scholar
CiteSeerX
ORCIDTomoaki Okayama
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2023
[j24]Tomoaki Okayama
, Ken'ichiro Tanaka:
Error analysis of approximation of derivatives by means of the Sinc approximation for double-exponentially decaying functions. JSIAM Lett. 15: 5-8 (2023)- [j23]Tomoaki Okayama, Yuta Kawai:
Optimal selection formulas of mesh size and truncation numbers for the double-exponential formula. JSIAM Lett. 15: 81-84 (2023) - [i11]Tomoaki Okayama:
Sinc-collocation methods with consistent collocation points for Fredholm integral equations of the second kind. CoRR abs/2301.12692 (2023) - [i10]Tomoaki Okayama, Shota Ogawa:
Improvement of selection formulas of mesh size and truncation numbers for the DE-Sinc approximation and its theoretical error bound. CoRR abs/2303.08334 (2023) - [i9]Tomoaki Okayama, Ryota Hara, Shun'ichi Goto:
Error analyses of Sinc-collocation methods for exponential decay initial value problems. CoRR abs/2306.15175 (2023) - 2022
- [j22]Tomoaki Okayama:
Double-exponential formula for infinite integrals of unilateral rapidly decreasing functions. JSIAM Lett. 14: 17-20 (2022) - [j21]Tomoaki Okayama, Katsuya Hirohata:
Theoretical comparison of two conformal maps combined with the trapezoidal formula for the semi-infinite integral of exponentially decaying functions. JSIAM Lett. 14: 77-79 (2022) - [i8]Tomoaki Okayama, Ken'ichiro Tanaka:
Yet another DE-Sinc indefinite integration formula. CoRR abs/2203.03898 (2022) - 2021
- [j20]Tomoaki Okayama, Tomoki Nomura, Saki Tsuruta:
New conformal map for the trapezoidal formula for infinite integrals of unilateral rapidly decreasing functions. J. Comput. Appl. Math. 389: 113354 (2021) - [j19]Tomoaki Okayama, Tomoya Shiraishi:
Improvement of the conformal map combined with the Sinc approximation for unilateral rapidly decreasing functions. JSIAM Lett. 13: 37-39 (2021) - [j18]Tomoaki Okayama, Shu Hanada:
A modified Stenger's quadrature formula for infinite integrals of unilateral rapidly decreasing functions and its theoretical error bound. Math. Comput. Simul. 186: 3-18 (2021) - 2020
- [j17]Tomoaki Okayama, Yuya Shintaku, Eisuke Katsuura:
New conformal map for the Sinc approximation for exponentially decaying functions over the semi-infinite interval. J. Comput. Appl. Math. 373: 112358 (2020) - [j16]Tomoaki Okayama, Chisei Kurogi:
Improvement of selection formulas of mesh size and truncation numbers for the double-exponential formula. JSIAM Lett. 12: 13-16 (2020) - [i7]Tomoaki Okayama, Tomoki Nomura, Saki Tsuruta:
New conformal map for the trapezoidal formula for infinite integrals of unilateral rapidly decreasing functions. CoRR abs/2005.04577 (2020)
2010 – 2019
- 2019
- [j15]Tomoaki Okayama, Ryota Hamada:
Modified SE-Sinc approximation with boundary treatment over the semi-infinite interval and its error bound. JSIAM Lett. 11: 5-7 (2019) - 2018
- [j14]Tomoaki Okayama:
Error estimates with explicit constants for the Sinc approximation over infinite intervals. Appl. Math. Comput. 319: 125-137 (2018) - [j13]Tomoaki Okayama:
Theoretical analysis of a Sinc-Nyström method for Volterra integro-differential equations and its improvement. Appl. Math. Comput. 324: 1-15 (2018) - [j12]Ken'ichiro Tanaka, Tomoaki Okayama, Masaaki Sugihara:
An optimal approximation formula for functions with singularities. J. Approx. Theory 234: 82-107 (2018) - [i6]Tomoaki Okayama, Yuya Shintaku, Eisuke Katsuura:
New conformal map for the Sinc approximation for exponentially decaying functions over the semi-infinite interval. CoRR abs/1812.11546 (2018) - 2017
- [j11]Tomoaki Okayama, Koichi Machida:
Error estimate with explicit constants for the trapezoidal formula combined with Muhammad-Mori's SE transformation for the semi-infinite interval. JSIAM Lett. 9: 45-47 (2017) - 2016
- [i5]Tomoaki Okayama:
Error estimates with explicit constants for the Sinc approximation over infinite intervals. CoRR abs/1610.06685 (2016) - 2015
- [j10]Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
Theoretical analysis of Sinc-Nyström methods for Volterra integral equations. Math. Comput. 84(293): 1189-1215 (2015) - [c3]Tomoaki Okayama:
Explicit Error Bound for Modified Numerical Iterated Integration by Means of Sinc Methods. MACIS 2015: 202-217 - [c2]Naoya Yamanaka, Tomoaki Okayama, Shin'ichi Oishi:
Verified Error Bounds for the Real Gamma Function Using Double Exponential Formula over Semi-infinite Interval. MACIS 2015: 224-228 - 2014
- [j9]Tomoaki Okayama:
Explicit error bound for the tanh rule and the DE formula for integrals with logarithmic singularity. JSIAM Lett. 6: 9-11 (2014) - 2013
- [j8]Tomoaki Okayama:
A note on the Sinc approximationwith boundary treatment. JSIAM Lett. 5: 1-4 (2013) - [j7]Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
Error estimates with explicit constants for Sinc approximation, Sinc quadrature and Sinc indefinite integration. Numerische Mathematik 124(2): 361-394 (2013) - [j6]Tomoaki Okayama, Ken'ichiro Tanaka, Takayasu Matsuo, Masaaki Sugihara:
DE-Sinc methods have almost the same convergence property as SE-Sinc methods even for a family of functions fitting the SE-Sinc methods. Numerische Mathematik 125(3): 511-543 (2013) - [j5]Ken'ichiro Tanaka, Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
DE-Sinc methods have almost the same convergence property as SE-Sinc methods even for a family of functions fitting the SE-Sinc methods. Numerische Mathematik 125(3): 545-568 (2013) - [j4]Tomoaki Okayama:
Error Estimates with Explicit Constants for Sinc Quadrature and Sinc Indefinite Integration over Infinite Intervals. Reliab. Comput. 19(1): 45-65 (2013) - [i4]Tomoaki Okayama:
Error Estimates with Explicit Constants for Sinc Quadrature and Sinc Indefinite Integration over Infinite Intervals. CoRR abs/1302.1314 (2013) - [i3]Tomoaki Okayama:
Theoretical analysis of Sinc-collocation methods and Sinc-Nyström methods for initial value problems. CoRR abs/1304.6508 (2013) - [i2]Tomoaki Okayama:
Explicit error bound for modified numerical iterated integration by means of Sinc methods. CoRR abs/1306.6615 (2013) - [i1]Tomoaki Okayama:
Theoretical analysis of a Sinc-Nyström method for Volterra integro-differential equations and its improvement. CoRR abs/1310.7708 (2013) - 2012
- [c1]Xuefeng Liu, Tomoaki Okayama, Shin'ichi Oishi:
High-Precision Eigenvalue Bound for the Laplacian with Singularities. ASCM 2012: 311-323 - 2011
- [j3]Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
On boundedness of the condition number of the coefficient matrices appearing in Sinc-Nyström methods for Fredholm integral equations of the second kind. JSIAM Lett. 3: 81-84 (2011) - 2010
- [j2]Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
Sinc-collocation methods for weakly singular Fredholm integral equations of the second kind. J. Comput. Appl. Math. 234(4): 1211-1227 (2010) - [j1]Tomoaki Okayama, Takayasu Matsuo, Masaaki Sugihara:
Error estimates with explicit constants for the tanh rule and the DE formula for indefinite integrals. JSIAM Lett. 2: 13-16 (2010)
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from 
to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the 
of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from 
, 
, and 
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from 
.
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-04-25 05:49 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint
dblp was originally created in 1993 at:
since 2018, dblp has been operated and maintained by:
the dblp computer science bibliography is funded and supported by:
