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Solving Doubly Bordered Tridiagonal Linear Systems via Partition
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作者 Moawwad El-Mikkawy Mohammed El-Shehawy Nermeen Shehab 《Applied Mathematics》 2015年第6期967-978,共12页
This paper presents new numeric and symbolic algorithms for solving doubly bordered tridiagonal linear system. The proposed algorithms are derived using partition together with UL factorization. Inversion algorithm fo... This paper presents new numeric and symbolic algorithms for solving doubly bordered tridiagonal linear system. The proposed algorithms are derived using partition together with UL factorization. Inversion algorithm for doubly bordered tridiagonal matrix is also considered based on the Sherman-Morrison-Woodbury formula. The algorithms are implemented using the computer algebra system, MAPLE. Some illustrative examples are given. 展开更多
关键词 DOUBLY bordered TRIDIAGONAL MATRICES UL FACTORIZATION Block MATRICES Computer ALGEBRA Systems Sherman-Morrison-Woodbury Formula
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New Algorithms for Solving Bordered <i>k</i>-Tridiagonal Linear Systems
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作者 Moawwad El-Mikkawy Faiz Atlan 《Journal of Applied Mathematics and Physics》 2015年第7期862-873,共12页
The present article is mainly devoted for solving bordered k-tridiagonal linear systems of equations. Two efficient and reliable symbolic algorithms for solving such systems are constructed. The computational cost of ... The present article is mainly devoted for solving bordered k-tridiagonal linear systems of equations. Two efficient and reliable symbolic algorithms for solving such systems are constructed. The computational cost of the algorithms is obtained. Some illustrative examples are given. 展开更多
关键词 bordered k-Tridiagonal MATRICES Partitioned MATRICES Algorithm LU FACTORIZATION MAPLE
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A Generalized Symbolic Thomas Algorithm for Solving Doubly Bordered <i>k</i>-Tridiagonal Linear Systems
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作者 Nermeen Shehab Moawwad El-Mikkawy Mohammed El-Shehawy 《Journal of Applied Mathematics and Physics》 2015年第9期1199-1206,共8页
In the current paper, the authors present a symbolic algorithm for solving doubly bordered k-tridiagonal linear system having n equations and n unknowns. The proposed algorithm is derived by using partition together w... In the current paper, the authors present a symbolic algorithm for solving doubly bordered k-tridiagonal linear system having n equations and n unknowns. The proposed algorithm is derived by using partition together with UL factorization. The cost of the algorithm is O(n). The algorithm is implemented using the computer algebra system, MAPLE. Some illustrative examples are given. 展开更多
关键词 DOUBLY bordered k-Tridiagonal Matrix UL FACTORIZATION DETGDBTRI ALGORITHM Thomas ALGORITHM Computer Algebra Systems (CAS)
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The impact of EU carbon border adjustment mechanism on China’s export and its countermeasures 被引量:1
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作者 Libing Wang Ya Wen Yun Zhang 《Global Energy Interconnection》 2025年第2期205-212,共8页
This study analyzes the potential impact of EU carbon border regulation mechanism(CBAM)on the export of China’s carbon-intensive products.First,we summarized the main content of the CBAM.Next,based on the input-outpu... This study analyzes the potential impact of EU carbon border regulation mechanism(CBAM)on the export of China’s carbon-intensive products.First,we summarized the main content of the CBAM.Next,based on the input-output theory,this study proposes a calculation model for the implicit carbon emissions and indirect carbon emissions from electricity consumption in export products and presents the corresponding calculation results.Based on the scenario analysis method,six carbon tariffscenarios were designed to evaluate the impact of the CBAM on the major export sectors under each scenario.The results showed that in 2021,the implicit carbon emissions in all products exported to Europe from China were approximately 375 million tons,of which the indirect carbon emissions from electricity were approximately 41.8 million tons,accounting for more than 10%.According to the current levy plan,China is expected to be subject to carbon tariffs of approximately USD 1.4 billion,accounting for 0.3%of its total export value to Europe in 2021.Finally,to reduce the adverse effects of CBAM,four measures were proposed from the perspective of the power industry. 展开更多
关键词 Implicit carbon emissions Carbon border regulation mechanism Indirect carbon emissions from electricity Green electricity trade
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ON THE NEVANLINNA CLASSES OF HOLOMORPHIC FUNCTIONS ON COMPACT BORDERED RIEMANN SURFACES
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作者 吕以辇 《Science China Mathematics》 SCIE 1989年第11期1297-1305,共9页
In this paper, the Nevanlinna class of holomorphlc functions on compact bordered Riemann surface Ω is discussed. This class is denoted by N(Ω), containing the class H^p(Ω). It is proved that f∈N(Ω) if and only if... In this paper, the Nevanlinna class of holomorphlc functions on compact bordered Riemann surface Ω is discussed. This class is denoted by N(Ω), containing the class H^p(Ω). It is proved that f∈N(Ω) if and only if f=φ/ψ,where φ and ψ are bounded holomorphic functions in Ω,and the Fatou boundary property is discussed. 展开更多
关键词 COMPACT bordered RIEMANN surface NEVANLINNA class of HOLOMORPHIC function NEVANLINNA representation theorem.
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The Legal Framework of Borders: A Critical Analysis of the Continuity and Change in Border Laws From the Colonial to the Post-Colonial Era in India
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作者 Shailen Verma 《International Relations and Diplomacy》 2025年第3期134-141,共8页
This article examines the evolution of India’s border laws from colonial to post-colonial periods,analyzing the continuities and transformations in legal frameworks governing territorial boundaries.Through historical... This article examines the evolution of India’s border laws from colonial to post-colonial periods,analyzing the continuities and transformations in legal frameworks governing territorial boundaries.Through historical-legal analysis of key legislation,policies,and judicial interpretations,the research demonstrates how colonial border regulations-primarily designed for imperial control-have been selectively preserved,modified,or replaced to serve post-independence imperatives.Findings reveal that 62%of colonial border management mechanisms persisted verbatim in post-colonial legislation,while regional variations created overlapping“legal border zones”with differential adaptation rates.The study identifies a significant shift from administrative boundaries toward securitized frontiers,with a 217%increase in religious and ethnic identifiers in post-1947 border legislation.This legal evolution reflects broader tensions between decolonization aspirations and inherited governance structures,creating what Cons(2016)terms“sensitive spaces”where exceptional legal regimes continue to operate.The research contributes to understanding how post-colonial states navigate the paradox of maintaining sovereignty through legal instruments originally designed for imperial control,with implications for borderland populations who experience persistent“legal liminality”despite constitutional protections. 展开更多
关键词 border laws post-colonial legal theory INDIA partition SECURITIZATION legal transplantation citizenship critical border studies historical institutionalism SOVEREIGNTY
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Meandering Stream of Ink Presenting a New Chapter Global Themed Event of 2025 Lanting Culture Salon:Chinese Calligraphy
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作者 Xuan Wen 《China & The World Cultural Exchange》 2025年第7期6-15,共10页
At the global themed event of 2025 Lanting Culture Salon:Chinese Calligraphy,we witnessed the inheritance and innovation of the art of calligraphy.Artists,based on the traditional calligraphy,incorporated new creativi... At the global themed event of 2025 Lanting Culture Salon:Chinese Calligraphy,we witnessed the inheritance and innovation of the art of calligraphy.Artists,based on the traditional calligraphy,incorporated new creativity and elements,having the art of calligraphy radiate new vitality and vigor.These activities broke through the traditional exhibition mode by adopting innovative forms such as digital interaction,cross-border creation and immersive experiences.This allowed the visitors to experience the charm of the art of calligraphy through interaction,further promoting communication and popularization of calligraphy culture. 展开更多
关键词 inheritance innovation INHERITANCE digital interactioncross border immersive experiencesthis Chinese calligraphy cross border creation art calligraphyartistsbased digital interaction
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A Gen-Z Yogoslarian’s Exploration of China
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作者 DARKO SAVOVIC 《China Today》 2025年第5期44-45,共2页
Bridges of mutual understanding are best built by the youth because they are unafraid to reach across borders and the future belongs to them.
关键词 borders mutual understanding China BRIDGES bridges mutual understanding YOUTH FUTURE
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Science knows no borders:Memories of Professor Rong-Sheng Zeng,a pioneering figure of modern geophysics in China
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作者 Wang-Ping Chen 《Earthquake Science》 2025年第5期461-464,共4页
Preface Here I document some personal memories of Professor Rong-Sheng Zeng,particularly how he had long-lasting influences on the work of my research groups in the USA and in China.The narrative directly crosses poli... Preface Here I document some personal memories of Professor Rong-Sheng Zeng,particularly how he had long-lasting influences on the work of my research groups in the USA and in China.The narrative directly crosses political boundaries,including those of the USA and China.Indirectly,it also involves collaboration of researchers and institutions from Türkiye,Germany,France,Nepal,Russia,the Solomon Islands,and New Caledonia.Collectively,my narrative demonstrates the far-reaching,“butterfly effect”of a dedicated,kind geophysicist in China. 展开更多
关键词 borders GEOPHYSICS rong sheng zeng usa PROFESSOR SCIENCE research researchers institutions
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Beyond emissions data: How China’s apparel giants are rewriting ESG as competitive advantage
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作者 Zhong Mengxia 《China Textile》 2025年第3期38-38,共1页
As the EU's carbon border tax approaches implementation and Generation Z increasingly prioritizes sustainability in their purchasing decisions,ESG has evolved from a moral concern to business survival challenges.B... As the EU's carbon border tax approaches implementation and Generation Z increasingly prioritizes sustainability in their purchasing decisions,ESG has evolved from a moral concern to business survival challenges.By analyzing the latest ESG reports released by prominent apparel brands in the China garment industry,including Bosideng,Anta,Youngor,Li-Ning,and Lilanz,we can see it’s not about a series of emission reduction data but a comprehensive innovation encompassing products,processes,and the entire value chain. 展开更多
关键词 sustainability competitive advantage APPAREL emission reduction data carbon border tax ESG China innovation
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Modeling the Social and Economic Impacts of Mongolia’s Dry Port and Its Results
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作者 Shatarkhuu Ishbel Munkhbold Adiya Bayasgalan Uuganbayar 《Applied Mathematics》 2025年第2期200-217,共18页
Mongolia is a landlocked country with limited infrastructure and high dependence on the Xingang Tianjin port in China for imports. This research examines the potential impacts of establishing a dry port in Zamyn-Uud, ... Mongolia is a landlocked country with limited infrastructure and high dependence on the Xingang Tianjin port in China for imports. This research examines the potential impacts of establishing a dry port in Zamyn-Uud, Mongolia, utilizing a system dynamics modeling approach via Vensim software. The study evaluates transportation time, costs, inflation, and logistics performance index improvements, revealing that the establishment of the dry port can reduce transportation costs and delays significantly while enhancing economic growth. The findings offer actionable insights for policymakers and stakeholders in addressing logistical inefficiencies and fostering sustainable development in landlocked regions. 展开更多
关键词 System Dynamics VENSIM Causal Loop Diagram Container Shipping Border Crossing TERMINAL LOGISTICS And Transportation
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The Abuse of Xinjiang
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作者 ROBERT WALKER 《China Today》 2025年第2期20-22,共3页
THE people of Xinjiang have always needed to be resilient.Over four-hour flight time from Beijing,Xinjiang Uygur Autonomous Region is located on China’s western border.Historically,Xinjiang’s people have needed to h... THE people of Xinjiang have always needed to be resilient.Over four-hour flight time from Beijing,Xinjiang Uygur Autonomous Region is located on China’s western border.Historically,Xinjiang’s people have needed to hold steadfast against invaders while encouraging trade between China and central Asia,Europe and beyond.For 25 years until 2016,they also witnessed multiple atrocities perpetrated by separatists. 展开更多
关键词 XINJIANG BORDER witnessed
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White Gold
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作者 CHINA TODAY 《China Today》 2025年第3期16-19,共4页
President Xi Jinping’s message at the Asian Winter Games shows China is seizing the opportunities presented by cross-border winter sports to promote economic growth and international exchanges.
关键词 WINTER EXCHANGES BORDER
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The Logic,Features and Layout of Trump 2.0“Tariff War”
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作者 Zhao Minghao 《Contemporary World》 2025年第3期41-46,共6页
After Donald Trump returned to the White House,the U.S.government launched a host of measures of“tariff wars”.In addition to announcing tariffs on goods imported to the United States from Canada,Mexico and China,the... After Donald Trump returned to the White House,the U.S.government launched a host of measures of“tariff wars”.In addition to announcing tariffs on goods imported to the United States from Canada,Mexico and China,the government also imposed trade restrictions on specific industries including steel,aluminum and copper,as well as advanced plan for“reciprocal tariffs”.Donald Trump claimed that a“tariff war”would correct trade imbalances,boost government revenue and promote the reshoring of manufacturing to the United States.By leveraging tariffs,the U.S.also attempts to achieve goals in border security,illegal immigration and fentanyl control.Undoubtedly at a central position in Trump’s second term in office,the“tariff war”will exert impacts far beyond economic and trade policies and upon the direction of China-U.S.relations. 展开更多
关键词 trade imbalances reshoring illegal immigration border security government revenue tariff wars trade restrictions U S China relations
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Mobilizing Collective Expertise:AESIA’s Vision to Empower ASEAN’s Energy Transition
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作者 Cai Zhichao Xu Yuhua +2 位作者 Wang Kequan Liu Zhengqing Wang Yanping 《China Oil & Gas》 2025年第4期41-45,共5页
Amid ASEAN’s accelerating energy transition,the Advanced Energy Storage Industry Technology and Innovation Alliance(AESIA)drives cross-border collaboration to address grid fragility,aging infrastructure,and investmen... Amid ASEAN’s accelerating energy transition,the Advanced Energy Storage Industry Technology and Innovation Alliance(AESIA)drives cross-border collaboration to address grid fragility,aging infrastructure,and investment gaps.By leveraging China’s tropical-tested solutions(e.g.,grid-stabilizing storage systems)and aligning with ASEAN’s 2030 renewable targets,AESIA focuses on three pillars:adaptive technology(localized storage for solar/wind integration),regional grid interconnection(via the ASEAN Power Grid to share renewable surpluses),and blended finance(mitigating risks for long-duration storage projects).Key initiatives include standardized tropical storage protocols,training ASEAN engineers in microgrid management,and pilot cross-border projects reducing curtailment.By 2030,AESIA aims to scale affordable storage and integrate emerging tech,balancing energy security with decarbonization.This model bridges technical expertise with ASEAN’s dynamic needs,fostering a resilient,inclusive energy future. 展开更多
关键词 aging infrastructure asean power grid cross border collaboration grid fragility collective expertise grid interconnection via advanced energy storage energy transitionthe
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Research on the Model and Pathways for Border Tourism Development and Poverty Alleviation in Ethnic Regions——A Case Study of the Northwest Yunnan Region
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作者 Baige Jiang Qichao Zhang +1 位作者 Weiyi Zhou Kai Li 《Proceedings of Business and Economic Studies》 2025年第4期299-304,共6页
Against the backdrop of globalization and regional economic integration,border tourism,as a unique form of tourism,is increasingly emerging as a significant driving force for promoting economic development in border r... Against the backdrop of globalization and regional economic integration,border tourism,as a unique form of tourism,is increasingly emerging as a significant driving force for promoting economic development in border regions,fostering cultural exchange,and strengthening international cooperation.The northwestern Yunnan region,located in China’s Southwestern frontier,is a key area bordering Southeast and South Asian countries,endowed with abundant border tourism resources.This article delves into the border tourism models and pathways for border development and prosperity in ethnic regions,using a case study of the Northwest Yunnan region to analyze the mechanisms and influencing factors of border tourism in promoting local economic development,social progress,and cultural heritage.This provides empirical evidence for further understanding the development patterns of border tourism and also contributes to strengthening ethnic unity and maintaining harmony and stability in border regions.This study addresses the current research gap in exploring the development models and pathways of border tourism in specific regions,offering valuable references and insights for future related research. 展开更多
关键词 Border tourism Border prosperity and people’s well-being ethnic regions Models and pathways
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Exploration of Teaching Practice on Empowering the Consciousness of the Chinese National Community with Ethnic Music in Universities in Border Areas
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作者 Yi Feng Decai Wang Zhijian Li 《Journal of Contemporary Educational Research》 2025年第5期301-308,共8页
Against the strategic backdrop of forging and strengthening the consciousness of the Chinese national community in the new era,universities in border areas,as crucial platforms for the integration of multi-ethnic cult... Against the strategic backdrop of forging and strengthening the consciousness of the Chinese national community in the new era,universities in border areas,as crucial platforms for the integration of multi-ethnic cultures,shoulder the significant mission of enhancing ethnic unity and promoting outstanding traditional Chinese culture.As an important carrier of Chinese culture,ethnic music not only contains profound historical memories and emotional identities but also demonstrates a powerful cultural and educational function in the teaching of border universities.Based on the actual situation of universities in border areas,this paper analyzes the unique value of ethnic music in cultivating students’national identity,cultural identity,and emotional identity,and explores effective paths for it to empower the forging and strengthening of the consciousness of the Chinese national community in teaching practice.By combining policy orientations and teaching status quo,the paper points out the main dilemmas such as single curriculum content,insufficient integration of ideological and political education,and a lack of practical resources,and proposes countermeasures such as strengthening the integration of ideological and political education,optimizing the curriculum structure,and expanding practical platforms.Through the deepening and innovation of ethnic music education,border universities can effectively enhance students’cultural consciousness and cultural confidence,providing solid educational support for forging and strengthening the consciousness of the Chinese national community.This paper has positive significance for promoting the high-quality development of education in border universities and constructing a new-era ethnic unity and progress education system. 展开更多
关键词 Border universities Ethnic music Consciousness of the Chinese national community Teaching practice Cultural identity
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New doors open for cross-border e-commerce
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作者 Zhong Mengxia 《China Textile》 2025年第3期13-14,共2页
On May 14th,following the U.S.adjustment of additional tariffs on Chinese goods,American buyers began stockpiling in earnest.Many cross-border e-commerce companies also received a surge of orders.At 7 PM,a bustling Ha... On May 14th,following the U.S.adjustment of additional tariffs on Chinese goods,American buyers began stockpiling in earnest.Many cross-border e-commerce companies also received a surge of orders.At 7 PM,a bustling Hangzhou-based cross-border e-commerce company was alive with multiple languages echoing through its live-streaming rooms as backend order numbers climbed steadily. 展开更多
关键词 cross border e commerce order numbers american buyers additional tariffs surge orders live streaming hangzhou based company
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Highland Ties Dehong leverages innovative communication approaches to strengthen China-Myanmar friendship and share local stories across the border
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作者 Zheng Bin 《China Report ASEAN》 2025年第11期56-58,共3页
Along China's southwestern border,Dehong Dai and Jingpo Autonomous Prefecture in Yunnan Province shares mountains,rivers,ethnic ties,and cultural connections with Myanmar.This land,imbued with the spirit of the pa... Along China's southwestern border,Dehong Dai and Jingpo Autonomous Prefecture in Yunnan Province shares mountains,rivers,ethnic ties,and cultural connections with Myanmar.This land,imbued with the spirit of the pauk-phaw friendship(pauk-phaw means fraternal in Myanmar language),has in recent years been exploring innovative approaches to international communication with Myanmar.Centered on serving the Belt and Road Initiative(BRI)and building a China-Myanmar community with a shared future,Dehong has incorporated the vision of“Mingalaba”(auspiciousness in Myanmar language)into its cross-border communication e"orts,sharing stories of China-Myanmar friendship with people far and wide. 展开更多
关键词 belt road initiative bri innovative communication Belt Road Initiative China Myanmar friendship Pauk phaw friendship cross border communication Mingalaba
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Chongqing:Creating a Model For China-Singapore Win-Win Cooperation
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作者 Huang Jiangqin 《China Report ASEAN》 2025年第8期20-21,共2页
The year 2025 marks the 35th anniversary of the establishment of diplomatic relations between China and Singapore,which coincides with the 10th anniversary of the implementation of the China-Singapore(Chongqing)Connec... The year 2025 marks the 35th anniversary of the establishment of diplomatic relations between China and Singapore,which coincides with the 10th anniversary of the implementation of the China-Singapore(Chongqing)Connectivity Initiative(CCI),the third inter-governmental cooperation project between China and Singapore.Since its launch in November 2015,Chongqing and Singapore have focused on the four major areas of financial services,aviation,transportation and logistics,and information communication.They have jointly solidified several landmark achievements such as the New International Land-Sea Trade Corridor(ILSTC),Cross-Border Investment and Financing Connectivity,and China-Singapore Dedicated Connectivity,setting a vivid example of mutual benefits and win-win cooperation between the two countries. 展开更多
关键词 Connectivity Initiative Aviation China Singapore Cooperation Win Win Cooperation Cross Border Investment Financing Financial Services establishment diplomatic relations CHONGQING
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